652861645 has 8 divisors (see below), whose sum is σ = 783889920. Its totient is φ = 521985360.

The previous prime is 652861613. The next prime is 652861667. The reversal of 652861645 is 546168256.

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

It is not a de Polignac number, because 652861645 - 2⁵ = 652861613 is a prime.

It is a super-3 number, since 3×652861645³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28321 + ... + 45910.

It is an arithmetic number, because the mean of its divisors is an integer number (97986240).

Almost surely, 2^652861645 is an apocalyptic number.

It is an amenable number.

652861645 is a deficient number, since it is larger than the sum of its proper divisors (131028275).

652861645 is a wasteful number, since it uses less digits than its factorization.

652861645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75995.

The product of its digits is 345600, while the sum is 43.

The square root of 652861645 is about 25551.1574101840. The cubic root of 652861645 is about 867.5084591412.

The spelling of 652861645 in words is "six hundred fifty-two million, eight hundred sixty-one thousand, six hundred forty-five".