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3438913 = 17202289

3438913 has 4 divisors (see below), whose sum is σ = 3641220. Its totient is φ = 3236608.

The previous prime is 3438901. The next prime is 3438979. The reversal of 3438913 is 3198343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3198343 = 26312161.

It can be written as a sum of positive squares in 2 ways, for example, as 1459264 + 1979649 = 1208^2 + 1407^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3438913 is a prime.

It is a super-2 number, since 2×34389132 = 23652245243138, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3438013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101128 + ... + 101161.

It is an arithmetic number, because the mean of its divisors is an integer number (910305).

Almost surely, 23438913 is an apocalyptic number.

It is an amenable number.

3438913 is a deficient number, since it is larger than the sum of its proper divisors (202307).

3438913 is a wasteful number, since it uses less digits than its factorization.

3438913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202306.

The product of its digits is 7776, while the sum is 31.

The square root of 3438913 is about 1854.4306403853. The cubic root of 3438913 is about 150.9409444080.

The spelling of 3438913 in words is "three million, four hundred thirty-eight thousand, nine hundred thirteen".

Divisors: 1 17 202289 3438913