7397828 has 6 divisors (see below), whose sum is σ = 12946206. Its totient is φ = 3698912.

The previous prime is 7397801. The next prime is 7397851. The reversal of 7397828 is 8287937.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4293184 + 3104644 = 2072^2 + 1762^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924725 + ... + 924732.

It is an arithmetic number, because the mean of its divisors is an integer number (2157701).

Almost surely, 2^7397828 is an apocalyptic number.

It is an amenable number.

7397828 is a deficient number, since it is larger than the sum of its proper divisors (5548378).

7397828 is a wasteful number, since it uses less digits than its factorization.

7397828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849461 (or 1849459 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 7397828 is about 2719.8948509088. The cubic root of 7397828 is about 194.8504485597.

The spelling of 7397828 in words is "seven million, three hundred ninety-seven thousand, eight hundred twenty-eight".