77673307 has 2 divisors, whose sum is σ = 77673308. Its totient is φ = 77673306.

The previous prime is 77673269. The next prime is 77673317. The reversal of 77673307 is 70337677.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77673307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77673307.

It is not a weakly prime, because it can be changed into another prime (77673317) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38836653 + 38836654.

It is an arithmetic number, because the mean of its divisors is an integer number (38836654).

Almost surely, 2^77673307 is an apocalyptic number.

77673307 is a deficient number, since it is larger than the sum of its proper divisors (1).

77673307 is an equidigital number, since it uses as much as digits as its factorization.

77673307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129654, while the sum is 40.

The square root of 77673307 is about 8813.2461102593. The cubic root of 77673307 is about 426.6685173124.

The spelling of 77673307 in words is "seventy-seven million, six hundred seventy-three thousand, three hundred seven".