974373977 has 2 divisors, whose sum is σ = 974373978. Its totient is φ = 974373976.

The previous prime is 974373973. The next prime is 974374019. The reversal of 974373977 is 779373479.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 924403216 + 49970761 = 30404^2 + 7069^2 .

It is an emirp because it is prime and its reverse (779373479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 974373977 - 2² = 974373973 is a prime.

It is not a weakly prime, because it can be changed into another prime (974373971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487186988 + 487186989.

It is an arithmetic number, because the mean of its divisors is an integer number (487186989).

Almost surely, 2^974373977 is an apocalyptic number.

It is an amenable number.

974373977 is a deficient number, since it is larger than the sum of its proper divisors (1).

974373977 is an equidigital number, since it uses as much as digits as its factorization.

974373977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7001316, while the sum is 56.

The square root of 974373977 is about 31214.9639916499. The cubic root of 974373977 is about 991.3839695593.

The spelling of 974373977 in words is "nine hundred seventy-four million, three hundred seventy-three thousand, nine hundred seventy-seven".