975976979 has 2 divisors, whose sum is σ = 975976980. Its totient is φ = 975976978.

The previous prime is 975976973. The next prime is 975977011. The reversal of 975976979 is 979679579.

It is a weak prime.

It is an emirp because it is prime and its reverse (979679579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 975976979 - 2²⁰ = 974928403 is a prime.

It is not a weakly prime, because it can be changed into another prime (975976973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487988489 + 487988490.

It is an arithmetic number, because the mean of its divisors is an integer number (487988490).

Almost surely, 2^975976979 is an apocalyptic number.

975976979 is a deficient number, since it is larger than the sum of its proper divisors (1).

975976979 is an equidigital number, since it uses as much as digits as its factorization.

975976979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67512690, while the sum is 68.

The square root of 975976979 is about 31240.6302593274. The cubic root of 975976979 is about 991.9273337527.

The spelling of 975976979 in words is "nine hundred seventy-five million, nine hundred seventy-six thousand, nine hundred seventy-nine".