652021357 has 32 divisors (see below), whose sum is σ = 744662016. Its totient is φ = 566784000.

The previous prime is 652021303. The next prime is 652021361. The reversal of 652021357 is 753120256.

It is a cyclic number.

It is not a de Polignac number, because 652021357 - 2²³ = 643632749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652021057) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3378253 + ... + 3378445.

It is an arithmetic number, because the mean of its divisors is an integer number (23270688).

Almost surely, 2^652021357 is an apocalyptic number.

It is an amenable number.

652021357 is a deficient number, since it is larger than the sum of its proper divisors (92640659).

652021357 is a wasteful number, since it uses less digits than its factorization.

652021357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 652021357 is about 25534.7088685186. The cubic root of 652021357 is about 867.1361138311.

The spelling of 652021357 in words is "six hundred fifty-two million, twenty-one thousand, three hundred fifty-seven".