7906628 has 6 divisors (see below), whose sum is σ = 13836606. Its totient is φ = 3953312.

The previous prime is 7906627. The next prime is 7906667. The reversal of 7906628 is 8266097.

It can be written as a sum of positive squares in only one way, i.e., 4528384 + 3378244 = 2128^2 + 1838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7906591 and 7906600.

It is not an unprimeable number, because it can be changed into a prime (7906621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 988325 + ... + 988332.

It is an arithmetic number, because the mean of its divisors is an integer number (2306101).

Almost surely, 2^7906628 is an apocalyptic number.

It is an amenable number.

7906628 is a deficient number, since it is larger than the sum of its proper divisors (5929978).

7906628 is a wasteful number, since it uses less digits than its factorization.

7906628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976661 (or 1976659 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 7906628 is about 2811.8726855958. The cubic root of 7906628 is about 199.2188530190.

The spelling of 7906628 in words is "seven million, nine hundred six thousand, six hundred twenty-eight".