61880912 has 10 divisors (see below), whose sum is σ = 119894298. Its totient is φ = 30940448.

The previous prime is 61880887. The next prime is 61880921. The reversal of 61880912 is 21908816.

It can be written as a sum of positive squares in only one way, i.e., 61842496 + 38416 = 7864^2 + 196^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933763 + ... + 1933794.

Almost surely, 2^61880912 is an apocalyptic number.

It is an amenable number.

61880912 is a deficient number, since it is larger than the sum of its proper divisors (58013386).

61880912 is a wasteful number, since it uses less digits than its factorization.

61880912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867565 (or 3867559 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 61880912 is about 7866.4421436886. The cubic root of 61880912 is about 395.5355913465.

The spelling of 61880912 in words is "sixty-one million, eight hundred eighty thousand, nine hundred twelve".