61398976 has 28 divisors (see below), whose sum is σ = 124815600. Its totient is φ = 29949440.

The previous prime is 61398971. The next prime is 61398977. The reversal of 61398976 is 67989316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61398971) 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, 9076 + ... + 14323.

It is an arithmetic number, because the mean of its divisors is an integer number (4457700).

Almost surely, 2^61398976 is an apocalyptic number.

It is an amenable number.

61398976 is an abundant number, since it is smaller than the sum of its proper divisors (63416624).

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

61398976 is a wasteful number, since it uses less digits than its factorization.

61398976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23452 (or 23442 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 61398976 is about 7835.7498683917. The cubic root of 61398976 is about 394.5060877864.

The spelling of 61398976 in words is "sixty-one million, three hundred ninety-eight thousand, nine hundred seventy-six".