60915921 has 32 divisors (see below), whose sum is σ = 93467520. Its totient is φ = 34944000.

The previous prime is 60915889. The next prime is 60915973. The reversal of 60915921 is 12951906.

It is not a de Polignac number, because 60915921 - 2⁵ = 60915889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (60910921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50121 + ... + 51321.

It is an arithmetic number, because the mean of its divisors is an integer number (2920860).

Almost surely, 2^60915921 is an apocalyptic number.

It is an amenable number.

60915921 is a deficient number, since it is larger than the sum of its proper divisors (32551599).

60915921 is a wasteful number, since it uses less digits than its factorization.

60915921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 60915921 is about 7804.8652134422. The cubic root of 60915921 is about 393.4687735398.

It can be divided in two parts, 60 and 915921, that added together give a triangular number (915981 = T₁₃₅₃).

The spelling of 60915921 in words is "sixty million, nine hundred fifteen thousand, nine hundred twenty-one".