653129684 has 12 divisors (see below), whose sum is σ = 1161714708. Its totient is φ = 321211200.

The previous prime is 653129683. The next prime is 653129699. The reversal of 653129684 is 486921356.

It can be written as a sum of positive squares in 2 ways, for example, as 26728900 + 626400784 = 5170^2 + 25028^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653129683) 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, 1338137 + ... + 1338624.

It is an arithmetic number, because the mean of its divisors is an integer number (96809559).

Almost surely, 2^653129684 is an apocalyptic number.

It is an amenable number.

653129684 is a deficient number, since it is larger than the sum of its proper divisors (508585024).

653129684 is a wasteful number, since it uses less digits than its factorization.

653129684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676826 (or 2676824 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 653129684 is about 25556.4020159333. The cubic root of 653129684 is about 867.6271643763.

The spelling of 653129684 in words is "six hundred fifty-three million, one hundred twenty-nine thousand, six hundred eighty-four".