61285724 has 12 divisors (see below), whose sum is σ = 109008648. Its totient is φ = 30140400.

The previous prime is 61285723. The next prime is 61285739. The reversal of 61285724 is 42758216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61285723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125342 + ... + 125829.

It is an arithmetic number, because the mean of its divisors is an integer number (9084054).

Almost surely, 2^61285724 is an apocalyptic number.

It is an amenable number.

61285724 is a deficient number, since it is larger than the sum of its proper divisors (47722924).

61285724 is a wasteful number, since it uses less digits than its factorization.

61285724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251236 (or 251234 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 61285724 is about 7828.5199111965. The cubic root of 61285724 is about 394.2633796022.

The spelling of 61285724 in words is "sixty-one million, two hundred eighty-five thousand, seven hundred twenty-four".