662980860 has 36 divisors (see below), whose sum is σ = 2011042488. Its totient is φ = 176794848.

The previous prime is 662980823. The next prime is 662980891. The reversal of 662980860 is 68089266.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1841434 + ... + 1841793.

Almost surely, 2^662980860 is an apocalyptic number.

662980860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662980860 is an abundant number, since it is smaller than the sum of its proper divisors (1348061628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662980860 is a wasteful number, since it uses less digits than its factorization.

662980860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683242 (or 3683237 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 662980860 is about 25748.4147084825. The cubic root of 662980860 is about 871.9675643043.

The spelling of 662980860 in words is "six hundred sixty-two million, nine hundred eighty thousand, eight hundred sixty".