53916979 has 8 divisors (see below), whose sum is σ = 57624048. Its totient is φ = 50269440.

The previous prime is 53916949. The next prime is 53916983. The reversal of 53916979 is 97961935.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53916979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53916949) 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, 13002 + ... + 16639.

It is an arithmetic number, because the mean of its divisors is an integer number (7203006).

Almost surely, 2^53916979 is an apocalyptic number.

53916979 is a deficient number, since it is larger than the sum of its proper divisors (3707069).

53916979 is a wasteful number, since it uses less digits than its factorization.

53916979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29765.

The product of its digits is 459270, while the sum is 49.

The square root of 53916979 is about 7342.8181919478. The cubic root of 53916979 is about 377.7825120866.

The spelling of 53916979 in words is "fifty-three million, nine hundred sixteen thousand, nine hundred seventy-nine".