7972826 has 4 divisors (see below), whose sum is σ = 11959242. Its totient is φ = 3986412.

The previous prime is 7972817. The next prime is 7972831. The reversal of 7972826 is 6282797.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7812025 + 160801 = 2795^2 + 401^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993205 + ... + 1993208.

Almost surely, 2^7972826 is an apocalyptic number.

7972826 is a deficient number, since it is larger than the sum of its proper divisors (3986416).

7972826 is a wasteful number, since it uses less digits than its factorization.

7972826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986415.

The product of its digits is 84672, while the sum is 41.

The square root of 7972826 is about 2823.6193086179. The cubic root of 7972826 is about 199.7732931170.

The spelling of 7972826 in words is "seven million, nine hundred seventy-two thousand, eight hundred twenty-six".