60902979 has 4 divisors (see below), whose sum is σ = 81203976. Its totient is φ = 40601984.

The previous prime is 60902911. The next prime is 60903001. The reversal of 60902979 is 97920906.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 60902979 - 2¹² = 60898883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 60902979.

It is not an unprimeable number, because it can be changed into a prime (60900979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10150494 + ... + 10150499.

It is an arithmetic number, because the mean of its divisors is an integer number (20300994).

Almost surely, 2^60902979 is an apocalyptic number.

60902979 is a deficient number, since it is larger than the sum of its proper divisors (20300997).

60902979 is a wasteful number, since it uses less digits than its factorization.

60902979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20300996.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 60902979 is about 7804.0360711622. The cubic root of 60902979 is about 393.4409065309.

The spelling of 60902979 in words is "sixty million, nine hundred two thousand, nine hundred seventy-nine".