770807397 has 4 divisors (see below), whose sum is σ = 1027743200. Its totient is φ = 513871596.

The previous prime is 770807381. The next prime is 770807399. The reversal of 770807397 is 793708077.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 770807397 - 2⁴ = 770807381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770807399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128467897 + ... + 128467902.

It is an arithmetic number, because the mean of its divisors is an integer number (256935800).

Almost surely, 2^770807397 is an apocalyptic number.

It is an amenable number.

770807397 is a deficient number, since it is larger than the sum of its proper divisors (256935803).

770807397 is a wasteful number, since it uses less digits than its factorization.

770807397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256935802.

The product of its (nonzero) digits is 518616, while the sum is 48.

The square root of 770807397 is about 27763.4183233981. The cubic root of 770807397 is about 916.8858938508.

The spelling of 770807397 in words is "seven hundred seventy million, eight hundred seven thousand, three hundred ninety-seven".