61974976 has 28 divisors (see below), whose sum is σ = 140551408. Its totient is φ = 26560512.

The previous prime is 61974973. The next prime is 61975003. The reversal of 61974976 is 67947916.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61974973) 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, 68721 + ... + 69616.

Almost surely, 2^61974976 is an apocalyptic number.

It is an amenable number.

61974976 is an abundant number, since it is smaller than the sum of its proper divisors (78576432).

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

61974976 is a wasteful number, since it uses less digits than its factorization.

61974976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138356 (or 138346 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The square root of 61974976 is about 7872.4186880526. The cubic root of 61974976 is about 395.7359052651.

The spelling of 61974976 in words is "sixty-one million, nine hundred seventy-four thousand, nine hundred seventy-six".