61322860 has 24 divisors (see below), whose sum is σ = 129101616. Its totient is φ = 24467520.

The previous prime is 61322809. The next prime is 61322909. The reversal of 61322860 is 6822316.

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, 4779 + ... + 12061.

It is an arithmetic number, because the mean of its divisors is an integer number (5379234).

Almost surely, 2^61322860 is an apocalyptic number.

It is an amenable number.

61322860 is an abundant number, since it is smaller than the sum of its proper divisors (67778756).

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

61322860 is a wasteful number, since it uses less digits than its factorization.

61322860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7713 (or 7711 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 61322860 is about 7830.8913924278. The cubic root of 61322860 is about 394.3429979733.

The spelling of 61322860 in words is "sixty-one million, three hundred twenty-two thousand, eight hundred sixty".