34386731 has 4 divisors (see below), whose sum is σ = 34414464. Its totient is φ = 34359000.

The previous prime is 34386707. The next prime is 34386739. The reversal of 34386731 is 13768343.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34386731 - 2¹⁰ = 34385707 is a prime.

It is a super-2 number, since 2×34386731² = 2364894537732722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34386691 and 34386700.

It is not an unprimeable number, because it can be changed into a prime (34386739) 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, 11915 + ... + 14516.

It is an arithmetic number, because the mean of its divisors is an integer number (8603616).

Almost surely, 2^34386731 is an apocalyptic number.

34386731 is a deficient number, since it is larger than the sum of its proper divisors (27733).

34386731 is a wasteful number, since it uses less digits than its factorization.

34386731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27732.

The product of its digits is 36288, while the sum is 35.

The square root of 34386731 is about 5864.0200374828. The cubic root of 34386731 is about 325.1848447504.

The spelling of 34386731 in words is "thirty-four million, three hundred eighty-six thousand, seven hundred thirty-one".