77970083 has 2 divisors, whose sum is σ = 77970084. Its totient is φ = 77970082.

The previous prime is 77970071. The next prime is 77970089. The reversal of 77970083 is 38007977.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77970083 - 2¹⁴ = 77953699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77970083.

It is not a weakly prime, because it can be changed into another prime (77970089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38985041 + 38985042.

It is an arithmetic number, because the mean of its divisors is an integer number (38985042).

Almost surely, 2^77970083 is an apocalyptic number.

77970083 is a deficient number, since it is larger than the sum of its proper divisors (1).

77970083 is an equidigital number, since it uses as much as digits as its factorization.

77970083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 77970083 is about 8830.0669872884. The cubic root of 77970083 is about 427.2112350605.

The spelling of 77970083 in words is "seventy-seven million, nine hundred seventy thousand, eighty-three".