61921792 has 20 divisors (see below), whose sum is σ = 123723666. Its totient is φ = 30960640.

The previous prime is 61921789. The next prime is 61921879. The reversal of 61921792 is 29712916.

It can be written as a sum of positive squares in only one way, i.e., 37161216 + 24760576 = 6096^2 + 4976^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59959 + ... + 60982.

Almost surely, 2^61921792 is an apocalyptic number.

It is an amenable number.

61921792 is a deficient number, since it is larger than the sum of its proper divisors (61801874).

61921792 is an equidigital number, since it uses as much as digits as its factorization.

61921792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120959 (or 120943 counting only the distinct ones).

The product of its digits is 13608, while the sum is 37.

The square root of 61921792 is about 7869.0400939378. The cubic root of 61921792 is about 395.6226722417.

The spelling of 61921792 in words is "sixty-one million, nine hundred twenty-one thousand, seven hundred ninety-two".