7115428 has 6 divisors (see below), whose sum is σ = 12452006. Its totient is φ = 3557712.

The previous prime is 7115417. The next prime is 7115473. The reversal of 7115428 is 8245117.

It can be written as a sum of positive squares in only one way, i.e., 3810304 + 3305124 = 1952^2 + 1818^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7115396 and 7115405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 889425 + ... + 889432.

Almost surely, 2^7115428 is an apocalyptic number.

It is an amenable number.

7115428 is a deficient number, since it is larger than the sum of its proper divisors (5336578).

7115428 is a wasteful number, since it uses less digits than its factorization.

7115428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778861 (or 1778859 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 7115428 is about 2667.4759605290. The cubic root of 7115428 is about 192.3388475308.

The spelling of 7115428 in words is "seven million, one hundred fifteen thousand, four hundred twenty-eight".