653090838 has 16 divisors (see below), whose sum is σ = 1374928320. Its totient is φ = 206239176.

The previous prime is 653090797. The next prime is 653090839. The reversal of 653090838 is 838090356.

It is a self number, because there is not a number n which added to its sum of digits gives 653090838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653090839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2864320 + ... + 2864547.

It is an arithmetic number, because the mean of its divisors is an integer number (85933020).

Almost surely, 2^653090838 is an apocalyptic number.

653090838 is an abundant number, since it is smaller than the sum of its proper divisors (721837482).

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

653090838 is a wasteful number, since it uses less digits than its factorization.

653090838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728891.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 653090838 is about 25555.6419993707. The cubic root of 653090838 is about 867.6099628343.

It can be divided in two parts, 65 and 3090838, that added together give a palindrome (3090903).

The spelling of 653090838 in words is "six hundred fifty-three million, ninety thousand, eight hundred thirty-eight".