61887492 has 36 divisors (see below), whose sum is σ = 160079920. Its totient is φ = 20148912.

The previous prime is 61887487. The next prime is 61887493. The reversal of 61887492 is 29478816.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (61887493) 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, 18442 + ... + 21537.

Almost surely, 2^61887492 is an apocalyptic number.

It is an amenable number.

61887492 is an abundant number, since it is smaller than the sum of its proper divisors (98192428).

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

61887492 is a wasteful number, since it uses less digits than its factorization.

61887492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40032 (or 40027 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 61887492 is about 7866.8603648470. The cubic root of 61887492 is about 395.5496103812.

The spelling of 61887492 in words is "sixty-one million, eight hundred eighty-seven thousand, four hundred ninety-two".