772628670 has 48 divisors (see below), whose sum is σ = 2191458672. Its totient is φ = 187303680.

The previous prime is 772628663. The next prime is 772628677. The reversal of 772628670 is 76826277.

It is a happy number.

772628670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (772628663) and next prime (772628677).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772628677) 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, 389227 + ... + 391206.

It is an arithmetic number, because the mean of its divisors is an integer number (45655389).

Almost surely, 2^772628670 is an apocalyptic number.

772628670 is an abundant number, since it is smaller than the sum of its proper divisors (1418830002).

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

772628670 is a wasteful number, since it uses less digits than its factorization.

772628670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780457 (or 780454 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 772628670 is about 27796.1988408487. The cubic root of 772628670 is about 917.6074688440.

The spelling of 772628670 in words is "seven hundred seventy-two million, six hundred twenty-eight thousand, six hundred seventy".