61630984 has 96 divisors (see below), whose sum is σ = 137044800. Its totient is φ = 25850880.

The previous prime is 61630969. The next prime is 61630993. The reversal of 61630984 is 48903616.

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 in 23 ways as a sum of consecutive naturals, for example, 1010314 + ... + 1010374.

It is an arithmetic number, because the mean of its divisors is an integer number (1427550).

Almost surely, 2^61630984 is an apocalyptic number.

It is an amenable number.

61630984 is an abundant number, since it is smaller than the sum of its proper divisors (75413816).

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

61630984 is a wasteful number, since it uses less digits than its factorization.

61630984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 61630984 is about 7850.5403635673. The cubic root of 61630984 is about 395.0023692642.

The spelling of 61630984 in words is "sixty-one million, six hundred thirty thousand, nine hundred eighty-four".