60721965 has 24 divisors (see below), whose sum is σ = 106243488. Its totient is φ = 32079840.

The previous prime is 60721961. The next prime is 60721993. The reversal of 60721965 is 56912706.

It is not a de Polignac number, because 60721965 - 2² = 60721961 is a prime.

It is a super-2 number, since 2×60721965² = 7374314066922450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60721961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1491 + ... + 11120.

It is an arithmetic number, because the mean of its divisors is an integer number (4426812).

Almost surely, 2^60721965 is an apocalyptic number.

It is an amenable number.

60721965 is a deficient number, since it is larger than the sum of its proper divisors (45521523).

60721965 is a wasteful number, since it uses less digits than its factorization.

60721965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12729 (or 12726 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 60721965 is about 7792.4299804361. The cubic root of 60721965 is about 393.0507286458.

The spelling of 60721965 in words is "sixty million, seven hundred twenty-one thousand, nine hundred sixty-five".