61572704 has 12 divisors (see below), whose sum is σ = 121221324. Its totient is φ = 30786336.

The previous prime is 61572703. The next prime is 61572737. The reversal of 61572704 is 40727516.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1924147 = 61572704 / (6 + 1 + 5 + 7 + 2 + 7 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61572701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962042 + ... + 962105.

It is an arithmetic number, because the mean of its divisors is an integer number (10101777).

Almost surely, 2^61572704 is an apocalyptic number.

It is an amenable number.

61572704 is a deficient number, since it is larger than the sum of its proper divisors (59648620).

61572704 is a wasteful number, since it uses less digits than its factorization.

61572704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924157 (or 1924149 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 61572704 is about 7846.8276392438. The cubic root of 61572704 is about 394.8778215300.

The spelling of 61572704 in words is "sixty-one million, five hundred seventy-two thousand, seven hundred four".