60917121 has 6 divisors (see below), whose sum is σ = 87991410. Its totient is φ = 40611408.

The previous prime is 60917117. The next prime is 60917149. The reversal of 60917121 is 12171906.

It can be written as a sum of positive squares in only one way, i.e., 58064400 + 2852721 = 7620^2 + 1689^2 .

It is not a de Polignac number, because 60917121 - 2² = 60917117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60917221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3384276 + ... + 3384293.

It is an arithmetic number, because the mean of its divisors is an integer number (14665235).

Almost surely, 2^60917121 is an apocalyptic number.

It is an amenable number.

60917121 is a deficient number, since it is larger than the sum of its proper divisors (27074289).

60917121 is a wasteful number, since it uses less digits than its factorization.

60917121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768575 (or 6768572 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 60917121 is about 7804.9420881900. The cubic root of 60917121 is about 393.4713572072.

The spelling of 60917121 in words is "sixty million, nine hundred seventeen thousand, one hundred twenty-one".