60979891 has 8 divisors (see below), whose sum is σ = 71312384. Its totient is φ = 51052680.

The previous prime is 60979871. The next prime is 60979903. The reversal of 60979891 is 19897906.

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

It is not a de Polignac number, because 60979891 - 2¹⁵ = 60947123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60979801) 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, 100995 + ... + 101596.

It is an arithmetic number, because the mean of its divisors is an integer number (8914048).

Almost surely, 2^60979891 is an apocalyptic number.

60979891 is a deficient number, since it is larger than the sum of its proper divisors (10332493).

60979891 is a wasteful number, since it uses less digits than its factorization.

60979891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202641.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 60979891 is about 7808.9622229846. The cubic root of 60979891 is about 393.6064572600.

The spelling of 60979891 in words is "sixty million, nine hundred seventy-nine thousand, eight hundred ninety-one".