770872148 has 12 divisors (see below), whose sum is σ = 1358874132. Its totient is φ = 382622400.

The previous prime is 770872139. The next prime is 770872169. The reversal of 770872148 is 841278077.

It can be written as a sum of positive squares in 2 ways, for example, as 317267344 + 453604804 = 17812^2 + 21298^2 .

It is a junction number, because it is equal to n+sod(n) for n = 770872099 and 770872108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702803 + ... + 703898.

It is an arithmetic number, because the mean of its divisors is an integer number (113239511).

Almost surely, 2^770872148 is an apocalyptic number.

It is an amenable number.

770872148 is a deficient number, since it is larger than the sum of its proper divisors (588001984).

770872148 is a wasteful number, since it uses less digits than its factorization.

770872148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406842 (or 1406840 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 44.

The square root of 770872148 is about 27764.5844197243. The cubic root of 770872148 is about 916.9115671973.

The spelling of 770872148 in words is "seven hundred seventy million, eight hundred seventy-two thousand, one hundred forty-eight".