986610645 has 64 divisors (see below), whose sum is σ = 1860595200. Its totient is φ = 494968320.

The previous prime is 986610641. The next prime is 986610671. The reversal of 986610645 is 546016689.

It is not a de Polignac number, because 986610645 - 2² = 986610641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 986610645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986610641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 186801 + ... + 192009.

It is an arithmetic number, because the mean of its divisors is an integer number (29071800).

Almost surely, 2^986610645 is an apocalyptic number.

It is an amenable number.

986610645 is a deficient number, since it is larger than the sum of its proper divisors (873984555).

986610645 is a wasteful number, since it uses less digits than its factorization.

986610645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5307 (or 5301 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 986610645 is about 31410.3588804713. The cubic root of 986610645 is about 995.5168127344.

The spelling of 986610645 in words is "nine hundred eighty-six million, six hundred ten thousand, six hundred forty-five".