3431387 has 4 divisors (see below), whose sum is σ = 3435096. Its totient is φ = 3427680.

The previous prime is 3431377. The next prime is 3431401. The reversal of 3431387 is 7831343.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7831343 = 13 ⋅602411.

It is a cyclic number.

It is not a de Polignac number, because 3431387 - 2¹⁰ = 3430363 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 4⁸ + 3¹³ + 1 + 3¹³ + 8 + 7² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3431317) 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, 812 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (858774).

Almost surely, 2^3431387 is an apocalyptic number.

3431387 is a deficient number, since it is larger than the sum of its proper divisors (3709).

3431387 is a wasteful number, since it uses less digits than its factorization.

3431387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708.

The product of its digits is 6048, while the sum is 29.

The square root of 3431387 is about 1852.4003347009. The cubic root of 3431387 is about 150.8307534602.

The spelling of 3431387 in words is "three million, four hundred thirty-one thousand, three hundred eighty-seven".