770512028 has 72 divisors (see below), whose sum is σ = 1609438320. Its totient is φ = 320601600.

The previous prime is 770512003. The next prime is 770512051. The reversal of 770512028 is 820215077.

It is a super-3 number, since 3×770512028³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 770511985 and 770512003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 874148 + ... + 875028.

It is an arithmetic number, because the mean of its divisors is an integer number (22353310).

Almost surely, 2^770512028 is an apocalyptic number.

It is an amenable number.

770512028 is an abundant number, since it is smaller than the sum of its proper divisors (838926292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

770512028 is a wasteful number, since it uses less digits than its factorization.

770512028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 770512028 is about 27758.0984219020. The cubic root of 770512028 is about 916.7687637393.

The spelling of 770512028 in words is "seven hundred seventy million, five hundred twelve thousand, twenty-eight".