77923033 has 2 divisors, whose sum is σ = 77923034. Its totient is φ = 77923032.

The previous prime is 77923007. The next prime is 77923049. The reversal of 77923033 is 33032977.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77387209 + 535824 = 8797^2 + 732^2 .

It is a cyclic number.

It is not a de Polignac number, because 77923033 - 2⁹ = 77922521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77923033.

It is not a weakly prime, because it can be changed into another prime (77923093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38961516 + 38961517.

It is an arithmetic number, because the mean of its divisors is an integer number (38961517).

Almost surely, 2^77923033 is an apocalyptic number.

It is an amenable number.

77923033 is a deficient number, since it is larger than the sum of its proper divisors (1).

77923033 is an equidigital number, since it uses as much as digits as its factorization.

77923033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 34.

The square root of 77923033 is about 8827.4023925501. The cubic root of 77923033 is about 427.1252861415.

The spelling of 77923033 in words is "seventy-seven million, nine hundred twenty-three thousand, thirty-three".