61107984 has 60 divisors (see below), whose sum is σ = 195451776. Its totient is φ = 17459136.

The previous prime is 61107983. The next prime is 61107997. The reversal of 61107984 is 48970116.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61107983) 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, 29304 + ... + 31319.

Almost surely, 2^61107984 is an apocalyptic number.

It is an amenable number.

61107984 is an abundant number, since it is smaller than the sum of its proper divisors (134343792).

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

61107984 is a wasteful number, since it uses less digits than its factorization.

61107984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60644 (or 60635 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 61107984 is about 7817.1595864483. The cubic root of 61107984 is about 393.8818648289.

The spelling of 61107984 in words is "sixty-one million, one hundred seven thousand, nine hundred eighty-four".