77146933 has 2 divisors, whose sum is σ = 77146934. Its totient is φ = 77146932.

The previous prime is 77146919. The next prime is 77146963. The reversal of 77146933 is 33964177.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77123524 + 23409 = 8782^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 77146933 - 2²⁵ = 43592501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77146903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38573466 + 38573467.

It is an arithmetic number, because the mean of its divisors is an integer number (38573467).

Almost surely, 2^77146933 is an apocalyptic number.

It is an amenable number.

77146933 is a deficient number, since it is larger than the sum of its proper divisors (1).

77146933 is an equidigital number, since it uses as much as digits as its factorization.

77146933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 40.

The square root of 77146933 is about 8783.3326818469. The cubic root of 77146933 is about 425.7025206842.

The spelling of 77146933 in words is "seventy-seven million, one hundred forty-six thousand, nine hundred thirty-three".