653021038 has 4 divisors (see below), whose sum is σ = 979531560. Its totient is φ = 326510518.

The previous prime is 653020993. The next prime is 653021059. The reversal of 653021038 is 830120356.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 653020997 and 653021015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163255258 + ... + 163255261.

It is an arithmetic number, because the mean of its divisors is an integer number (244882890).

Almost surely, 2^653021038 is an apocalyptic number.

653021038 is a deficient number, since it is larger than the sum of its proper divisors (326510522).

653021038 is a wasteful number, since it uses less digits than its factorization.

653021038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326510521.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 653021038 is about 25554.2763153254. The cubic root of 653021038 is about 867.5790527222.

The spelling of 653021038 in words is "six hundred fifty-three million, twenty-one thousand, thirty-eight".