770825772 has 72 divisors (see below), whose sum is σ = 2037890400. Its totient is φ = 245203200.

The previous prime is 770825743. The next prime is 770825777. The reversal of 770825772 is 277528077.

It is a happy number.

770825772 is a `hidden beast` number, since 7 + 70 + 8 + 2 + 577 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (770825777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 496854 + ... + 498402.

Almost surely, 2^770825772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770825772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018945200).

770825772 is an abundant number, since it is smaller than the sum of its proper divisors (1267064628).

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

770825772 is a wasteful number, since it uses less digits than its factorization.

770825772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183 (or 2178 counting only the distinct ones).

The product of its (nonzero) digits is 384160, while the sum is 45.

The square root of 770825772 is about 27763.7492424924. The cubic root of 770825772 is about 916.8931795638.

The spelling of 770825772 in words is "seven hundred seventy million, eight hundred twenty-five thousand, seven hundred seventy-two".