770408069 has 4 divisors (see below), whose sum is σ = 803904096. Its totient is φ = 736912044.

The previous prime is 770407993. The next prime is 770408071. The reversal of 770408069 is 960804077.

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 a cyclic number.

It is not a de Polignac number, because 770408069 - 2¹⁶ = 770342533 is a prime.

It is a super-2 number, since 2×770408069² = 1187057185560617522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770428069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16747979 + ... + 16748024.

It is an arithmetic number, because the mean of its divisors is an integer number (200976024).

Almost surely, 2^770408069 is an apocalyptic number.

It is an amenable number.

770408069 is a deficient number, since it is larger than the sum of its proper divisors (33496027).

770408069 is a wasteful number, since it uses less digits than its factorization.

770408069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33496026.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 770408069 is about 27756.2257700862. The cubic root of 770408069 is about 916.7275311359.

The spelling of 770408069 in words is "seven hundred seventy million, four hundred eight thousand, sixty-nine".