770913887 has 2 divisors, whose sum is σ = 770913888. Its totient is φ = 770913886.

The previous prime is 770913827. The next prime is 770913893. The reversal of 770913887 is 788319077.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 770913887 - 2⁶ = 770913823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770913827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385456943 + 385456944.

It is an arithmetic number, because the mean of its divisors is an integer number (385456944).

Almost surely, 2^770913887 is an apocalyptic number.

770913887 is a deficient number, since it is larger than the sum of its proper divisors (1).

770913887 is an equidigital number, since it uses as much as digits as its factorization.

770913887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 50.

The square root of 770913887 is about 27765.3360685586. The cubic root of 770913887 is about 916.9281156748.

The spelling of 770913887 in words is "seven hundred seventy million, nine hundred thirteen thousand, eight hundred eighty-seven".