3431399 has 4 divisors (see below), whose sum is σ = 3633264. Its totient is φ = 3229536.

The previous prime is 3431377. The next prime is 3431401. The reversal of 3431399 is 9931343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9931343 = 67 ⋅148229.

It is a cyclic number.

It is not a de Polignac number, because 3431399 - 2⁸ = 3431143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431699) 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, 100907 + ... + 100940.

It is an arithmetic number, because the mean of its divisors is an integer number (908316).

Almost surely, 2^3431399 is an apocalyptic number.

3431399 is a deficient number, since it is larger than the sum of its proper divisors (201865).

3431399 is a wasteful number, since it uses less digits than its factorization.

3431399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201864.

The product of its digits is 8748, while the sum is 32.

The square root of 3431399 is about 1852.4035737387. The cubic root of 3431399 is about 150.8309292848.

The spelling of 3431399 in words is "three million, four hundred thirty-one thousand, three hundred ninety-nine".