61672884 has 48 divisors (see below), whose sum is σ = 177115008. Its totient is φ = 16265088.

The previous prime is 61672873. The next prime is 61672909. The reversal of 61672884 is 48827616.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27147 + ... + 29330.

It is an arithmetic number, because the mean of its divisors is an integer number (3689896).

Almost surely, 2^61672884 is an apocalyptic number.

It is an amenable number.

61672884 is an abundant number, since it is smaller than the sum of its proper divisors (115442124).

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

61672884 is a wasteful number, since it uses less digits than its factorization.

61672884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56504 (or 56502 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 61672884 is about 7853.2085162690. The cubic root of 61672884 is about 395.0918634816.

The spelling of 61672884 in words is "sixty-one million, six hundred seventy-two thousand, eight hundred eighty-four".