61716228 has 24 divisors (see below), whose sum is σ = 164576832. Its totient is φ = 17633184.

The previous prime is 61716211. The next prime is 61716271. The reversal of 61716228 is 82261716.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367275 + ... + 367442.

It is an arithmetic number, because the mean of its divisors is an integer number (6857368).

Almost surely, 2^61716228 is an apocalyptic number.

It is an amenable number.

61716228 is an abundant number, since it is smaller than the sum of its proper divisors (102860604).

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

61716228 is a wasteful number, since it uses less digits than its factorization.

61716228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734731 (or 734729 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 61716228 is about 7855.9676679579. The cubic root of 61716228 is about 395.1843992951.

The spelling of 61716228 in words is "sixty-one million, seven hundred sixteen thousand, two hundred twenty-eight".