7972479 has 8 divisors (see below), whose sum is σ = 11811120. Its totient is φ = 5314968.

The previous prime is 7972453. The next prime is 7972499. The reversal of 7972479 is 9742797.

It is a happy number.

It is not a de Polignac number, because 7972479 - 2⁷ = 7972351 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147612 + ... + 147665.

It is an arithmetic number, because the mean of its divisors is an integer number (1476390).

Almost surely, 2^7972479 is an apocalyptic number.

7972479 is a deficient number, since it is larger than the sum of its proper divisors (3838641).

7972479 is a wasteful number, since it uses less digits than its factorization.

7972479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295286 (or 295280 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 7972479 is about 2823.5578619890. The cubic root of 7972479 is about 199.7703948416.

The spelling of 7972479 in words is "seven million, nine hundred seventy-two thousand, four hundred seventy-nine".