7772628 has 12 divisors (see below), whose sum is σ = 18136160. Its totient is φ = 2590872.

The previous prime is 7772617. The next prime is 7772629. The reversal of 7772628 is 8262777.

7772628 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7772629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323848 + ... + 323871.

Almost surely, 2^7772628 is an apocalyptic number.

It is an amenable number.

7772628 is an abundant number, since it is smaller than the sum of its proper divisors (10363532).

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

7772628 is a wasteful number, since it uses less digits than its factorization.

7772628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647726 (or 647724 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 7772628 is about 2787.9433279749. The cubic root of 7772628 is about 198.0869937082.

The spelling of 7772628 in words is "seven million, seven hundred seventy-two thousand, six hundred twenty-eight".