61766972 has 6 divisors (see below), whose sum is σ = 108092208. Its totient is φ = 30883484.

The previous prime is 61766959. The next prime is 61766987. The reversal of 61766972 is 27966716.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7720868 + ... + 7720875.

It is an arithmetic number, because the mean of its divisors is an integer number (18015368).

Almost surely, 2^61766972 is an apocalyptic number.

It is an amenable number.

61766972 is a deficient number, since it is larger than the sum of its proper divisors (46325236).

61766972 is a wasteful number, since it uses less digits than its factorization.

61766972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15441747 (or 15441745 counting only the distinct ones).

The product of its digits is 190512, while the sum is 44.

The square root of 61766972 is about 7859.1966510579. The cubic root of 61766972 is about 395.2926784533.

The spelling of 61766972 in words is "sixty-one million, seven hundred sixty-six thousand, nine hundred seventy-two".