62721216 has 168 divisors, whose sum is σ = 193233040. Its totient is φ = 20155392.

The previous prime is 62721173. The next prime is 62721251. The reversal of 62721216 is 61212726.

62721216 is a `hidden beast` number, since 627 + 21 + 2 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 62721216.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 575370 + ... + 575478.

Almost surely, 2^62721216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 62721216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96616520).

62721216 is an abundant number, since it is smaller than the sum of its proper divisors (130511824).

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

62721216 is a wasteful number, since it uses less digits than its factorization.

62721216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 151 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 62721216 is about 7919.6727205106. The cubic root of 62721216 is about 397.3179230194.

The spelling of 62721216 in words is "sixty-two million, seven hundred twenty-one thousand, two hundred sixteen".