653043672 has 48 divisors (see below), whose sum is σ = 1772829240. Its totient is φ = 217168128.

The previous prime is 653043667. The next prime is 653043691. The reversal of 653043672 is 276340356.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20703 + ... + 41649.

Almost surely, 2^653043672 is an apocalyptic number.

It is an amenable number.

653043672 is an abundant number, since it is smaller than the sum of its proper divisors (1119785568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653043672 is a wasteful number, since it uses less digits than its factorization.

653043672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21392 (or 21385 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 653043672 is about 25554.7191727869. The cubic root of 653043672 is about 867.5890761652.

The spelling of 653043672 in words is "six hundred fifty-three million, forty-three thousand, six hundred seventy-two".