7972838 has 8 divisors (see below), whose sum is σ = 12110880. Its totient is φ = 3935880.

The previous prime is 7972831. The next prime is 7972849. The reversal of 7972838 is 8382797.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7972838² = 127132291548488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25073 + ... + 25388.

It is an arithmetic number, because the mean of its divisors is an integer number (1513860).

Almost surely, 2^7972838 is an apocalyptic number.

7972838 is a deficient number, since it is larger than the sum of its proper divisors (4138042).

7972838 is a wasteful number, since it uses less digits than its factorization.

7972838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50542.

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

The square root of 7972838 is about 2823.6214335495. The cubic root of 7972838 is about 199.7733933441.

The spelling of 7972838 in words is "seven million, nine hundred seventy-two thousand, eight hundred thirty-eight".