61323912 has 64 divisors (see below), whose sum is σ = 183456000. Its totient is φ = 18868032.

The previous prime is 61323901. The next prime is 61323919. The reversal of 61323912 is 21932316.

61323912 is a `hidden beast` number, since 613 + 2 + 39 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (61323919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8112 + ... + 13727.

It is an arithmetic number, because the mean of its divisors is an integer number (2866500).

Almost surely, 2^61323912 is an apocalyptic number.

It is an amenable number.

61323912 is an abundant number, since it is smaller than the sum of its proper divisors (122132088).

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

61323912 is a wasteful number, since it uses less digits than its factorization.

61323912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21867 (or 21857 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 61323912 is about 7830.9585620153. The cubic root of 61323912 is about 394.3452529587.

The spelling of 61323912 in words is "sixty-one million, three hundred twenty-three thousand, nine hundred twelve".