61612308 has 36 divisors (see below), whose sum is σ = 162515808. Its totient is φ = 19644240.

The previous prime is 61612303. The next prime is 61612339. The reversal of 61612308 is 80321616.

61612308 is a `hidden beast` number, since 616 + 12 + 30 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61612303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36378 + ... + 38033.

It is an arithmetic number, because the mean of its divisors is an integer number (4514328).

Almost surely, 2^61612308 is an apocalyptic number.

It is an amenable number.

61612308 is an abundant number, since it is smaller than the sum of its proper divisors (100903500).

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

61612308 is a wasteful number, since it uses less digits than its factorization.

61612308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74444 (or 74439 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 61612308 is about 7849.3508011809. The cubic root of 61612308 is about 394.9624661232.

The spelling of 61612308 in words is "sixty-one million, six hundred twelve thousand, three hundred eight".