61959984 has 40 divisors (see below), whose sum is σ = 160345392. Its totient is φ = 20616960.

The previous prime is 61959983. The next prime is 61960001. The reversal of 61959984 is 48995916.

It is not an unprimeable number, because it can be changed into a prime (61959983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51874 + ... + 53054.

Almost surely, 2^61959984 is an apocalyptic number.

It is an amenable number.

61959984 is an abundant number, since it is smaller than the sum of its proper divisors (98385408).

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

61959984 is a wasteful number, since it uses less digits than its factorization.

61959984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285 (or 2279 counting only the distinct ones).

The product of its digits is 699840, while the sum is 51.

The square root of 61959984 is about 7871.4664453328. The cubic root of 61959984 is about 395.7039926473.

The spelling of 61959984 in words is "sixty-one million, nine hundred fifty-nine thousand, nine hundred eighty-four".