7897442 has 8 divisors (see below), whose sum is σ = 13538496. Its totient is φ = 3384612.

The previous prime is 7897411. The next prime is 7897453. The reversal of 7897442 is 2447987.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7897442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282038 + ... + 282065.

It is an arithmetic number, because the mean of its divisors is an integer number (1692312).

Almost surely, 2^7897442 is an apocalyptic number.

7897442 is a deficient number, since it is larger than the sum of its proper divisors (5641054).

7897442 is a wasteful number, since it uses less digits than its factorization.

7897442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564112.

The product of its digits is 112896, while the sum is 41.

The square root of 7897442 is about 2810.2387798904. The cubic root of 7897442 is about 199.1416716317.

The spelling of 7897442 in words is "seven million, eight hundred ninety-seven thousand, four hundred forty-two".