634709924 has 6 divisors (see below), whose sum is σ = 1110742374. Its totient is φ = 317354960.

The previous prime is 634709923. The next prime is 634709969. The reversal of 634709924 is 429907436.

It can be written as a sum of positive squares in only one way, i.e., 333062500 + 301647424 = 18250^2 + 17368^2 .

It is not an unprimeable number, because it can be changed into a prime (634709923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79338737 + ... + 79338744.

It is an arithmetic number, because the mean of its divisors is an integer number (185123729).

Almost surely, 2^634709924 is an apocalyptic number.

It is an amenable number.

634709924 is a deficient number, since it is larger than the sum of its proper divisors (476032450).

634709924 is a wasteful number, since it uses less digits than its factorization.

634709924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158677485 (or 158677483 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 634709924 is about 25193.4500217815. The cubic root of 634709924 is about 859.3929030655.

The spelling of 634709924 in words is "six hundred thirty-four million, seven hundred nine thousand, nine hundred twenty-four".