7828972 has 6 divisors (see below), whose sum is σ = 13700708. Its totient is φ = 3914484.

The previous prime is 7828963. The next prime is 7828987. The reversal of 7828972 is 2798287.

It is a super-2 number, since 2×7828972² = 122585605153568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978618 + ... + 978625.

Almost surely, 2^7828972 is an apocalyptic number.

It is an amenable number.

7828972 is a deficient number, since it is larger than the sum of its proper divisors (5871736).

7828972 is a wasteful number, since it uses less digits than its factorization.

7828972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957247 (or 1957245 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 7828972 is about 2798.0300212828. The cubic root of 7828972 is about 198.5644878422.

The spelling of 7828972 in words is "seven million, eight hundred twenty-eight thousand, nine hundred seventy-two".