60995721 has 8 divisors (see below), whose sum is σ = 83525824. Its totient is φ = 39564720.

The previous prime is 60995713. The next prime is 60995723. The reversal of 60995721 is 12759906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 60995721 - 2³ = 60995713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60995721.

It is not an unprimeable number, because it can be changed into a prime (60995723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274645 + ... + 274866.

It is an arithmetic number, because the mean of its divisors is an integer number (10440728).

Almost surely, 2^60995721 is an apocalyptic number.

It is an amenable number.

60995721 is a deficient number, since it is larger than the sum of its proper divisors (22530103).

60995721 is a wasteful number, since it uses less digits than its factorization.

60995721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549551.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 60995721 is about 7809.9757361979. The cubic root of 60995721 is about 393.6405135751.

It can be divided in two parts, 60995 and 721, that added together give a palindrome (61716).

The spelling of 60995721 in words is "sixty million, nine hundred ninety-five thousand, seven hundred twenty-one".