634032609 has 12 divisors (see below), whose sum is σ = 983397744. Its totient is φ = 362304264.

The previous prime is 634032577. The next prime is 634032613. The reversal of 634032609 is 906230436.

It is not a de Polignac number, because 634032609 - 2⁵ = 634032577 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 634032609.

It is not an unprimeable number, because it can be changed into a prime (634032649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2156427 + ... + 2156720.

It is an arithmetic number, because the mean of its divisors is an integer number (81949812).

Almost surely, 2^634032609 is an apocalyptic number.

It is an amenable number.

634032609 is a deficient number, since it is larger than the sum of its proper divisors (349365135).

634032609 is a wasteful number, since it uses less digits than its factorization.

634032609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313164 (or 4313157 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 634032609 is about 25180.0041501188. The cubic root of 634032609 is about 859.0871009683.

The spelling of 634032609 in words is "six hundred thirty-four million, thirty-two thousand, six hundred nine".