652089861 has 12 divisors (see below), whose sum is σ = 991481920. Its totient is φ = 411846120.

The previous prime is 652089839. The next prime is 652089863. The reversal of 652089861 is 168980256.

It is not a de Polignac number, because 652089861 - 2⁵ = 652089829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652089863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1906525 + ... + 1906866.

Almost surely, 2^652089861 is an apocalyptic number.

It is an amenable number.

652089861 is a deficient number, since it is larger than the sum of its proper divisors (339392059).

652089861 is a wasteful number, since it uses less digits than its factorization.

652089861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813416 (or 3813413 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 652089861 is about 25536.0502231649. The cubic root of 652089861 is about 867.1664810430.

The spelling of 652089861 in words is "six hundred fifty-two million, eighty-nine thousand, eight hundred sixty-one".