61286960 has 40 divisors (see below), whose sum is σ = 162849696. Its totient is φ = 21012480.

The previous prime is 61286959. The next prime is 61286971. The reversal of 61286960 is 6968216.

It is a tau number, because it is divible by the number of its divisors (40).

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, 54161 + ... + 55280.

Almost surely, 2^61286960 is an apocalyptic number.

It is an amenable number.

61286960 is an abundant number, since it is smaller than the sum of its proper divisors (101562736).

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

61286960 is a wasteful number, since it uses less digits than its factorization.

61286960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109461 (or 109455 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 61286960 is about 7828.5988529238. The cubic root of 61286960 is about 394.2660300632.

The spelling of 61286960 in words is "sixty-one million, two hundred eighty-six thousand, nine hundred sixty".