34687631 has 4 divisors (see below), whose sum is σ = 37841064. Its totient is φ = 31534200.

The previous prime is 34687607. The next prime is 34687649. The reversal of 34687631 is 13678643.

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 34687631 - 2¹⁸ = 34425487 is a prime.

It is a super-2 number, since 2×34687631² = 2406463488784322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34687691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576700 + ... + 1576721.

It is an arithmetic number, because the mean of its divisors is an integer number (9460266).

Almost surely, 2^34687631 is an apocalyptic number.

34687631 is a deficient number, since it is larger than the sum of its proper divisors (3153433).

34687631 is a wasteful number, since it uses less digits than its factorization.

34687631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153432.

The product of its digits is 72576, while the sum is 38.

The square root of 34687631 is about 5889.6206159650. The cubic root of 34687631 is about 326.1305980565.

The spelling of 34687631 in words is "thirty-four million, six hundred eighty-seven thousand, six hundred thirty-one".