61620600 has 48 divisors (see below), whose sum is σ = 191025720. Its totient is φ = 16432000.

The previous prime is 61620593. The next prime is 61620613. The reversal of 61620600 is 602616.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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, 50751 + ... + 51950.

Almost surely, 2^61620600 is an apocalyptic number.

61620600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61620600 is an abundant number, since it is smaller than the sum of its proper divisors (129405120).

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

61620600 is a wasteful number, since it uses less digits than its factorization.

61620600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102720 (or 102711 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61620600 is about 7849.8789799589. The cubic root of 61620600 is about 394.9801838053.

The spelling of 61620600 in words is "sixty-one million, six hundred twenty thousand, six hundred".