770307028 has 12 divisors (see below), whose sum is σ = 1350964692. Its totient is φ = 384317120.

The previous prime is 770307001. The next prime is 770307037. The reversal of 770307028 is 820703077.

It can be written as a sum of positive squares in 2 ways, for example, as 187470864 + 582836164 = 13692^2 + 24142^2 .

It is a junction number, because it is equal to n+sod(n) for n = 770306984 and 770307002.

It is a congruent number.

It is an unprimeable number.

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, 207025 + ... + 210712.

It is an arithmetic number, because the mean of its divisors is an integer number (112580391).

Almost surely, 2^770307028 is an apocalyptic number.

It is an amenable number.

770307028 is a deficient number, since it is larger than the sum of its proper divisors (580657664).

770307028 is a wasteful number, since it uses less digits than its factorization.

770307028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418202 (or 418200 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 770307028 is about 27754.4055601989. The cubic root of 770307028 is about 916.6874523257.

The spelling of 770307028 in words is "seven hundred seventy million, three hundred seven thousand, twenty-eight".