61988796 has 18 divisors (see below), whose sum is σ = 156693992. Its totient is φ = 20662920.

The previous prime is 61988789. The next prime is 61988803. The reversal of 61988796 is 69788916.

It is an interprime number because it is at equal distance from previous prime (61988789) and next prime (61988803).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×61988796² = 7685221659059232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 860920 + ... + 860991.

Almost surely, 2^61988796 is an apocalyptic number.

It is an amenable number.

61988796 is an abundant number, since it is smaller than the sum of its proper divisors (94705196).

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

61988796 is a wasteful number, since it uses less digits than its factorization.

61988796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721921 (or 1721916 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 61988796 is about 7873.2963871558. The cubic root of 61988796 is about 395.7653185546.

The spelling of 61988796 in words is "sixty-one million, nine hundred eighty-eight thousand, seven hundred ninety-six".