652394981 has 8 divisors (see below), whose sum is σ = 747628800. Its totient is φ = 557669808.

The previous prime is 652394957. The next prime is 652394983. The reversal of 652394981 is 189493256.

652394981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 652394981 - 2¹⁸ = 652132837 is a prime.

It is a super-2 number, since 2×652394981² = 851238422467980722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652394983) 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, 124406 + ... + 129543.

It is an arithmetic number, because the mean of its divisors is an integer number (93453600).

Almost surely, 2^652394981 is an apocalyptic number.

It is an amenable number.

652394981 is a deficient number, since it is larger than the sum of its proper divisors (95233819).

652394981 is a wasteful number, since it uses less digits than its factorization.

652394981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254323.

The product of its digits is 466560, while the sum is 47.

The square root of 652394981 is about 25542.0238234953. The cubic root of 652394981 is about 867.3017121899.

The spelling of 652394981 in words is "six hundred fifty-two million, three hundred ninety-four thousand, nine hundred eighty-one".