61931412 has 48 divisors (see below), whose sum is σ = 169019200. Its totient is φ = 19556640.

The previous prime is 61931407. The next prime is 61931413. The reversal of 61931412 is 21413916.

61931412 is a `hidden beast` number, since 619 + 3 + 1 + 41 + 2 = 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (61931413) 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, 13039 + ... + 17142.

Almost surely, 2^61931412 is an apocalyptic number.

It is an amenable number.

61931412 is an abundant number, since it is smaller than the sum of its proper divisors (107087788).

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

61931412 is a wasteful number, since it uses less digits than its factorization.

61931412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30213 (or 30205 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 61931412 is about 7869.6513264566. The cubic root of 61931412 is about 395.6431587990.

The spelling of 61931412 in words is "sixty-one million, nine hundred thirty-one thousand, four hundred twelve".