7897538 has 8 divisors (see below), whose sum is σ = 12923280. Its totient is φ = 3589780.

The previous prime is 7897531. The next prime is 7897553. The reversal of 7897538 is 8357987.

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

It is a super-2 number, since 2×7897538² = 124742212922888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7897492 and 7897501.

It is not an unprimeable number, because it can be changed into a prime (7897531) 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, 179468 + ... + 179511.

It is an arithmetic number, because the mean of its divisors is an integer number (1615410).

Almost surely, 2^7897538 is an apocalyptic number.

7897538 is a deficient number, since it is larger than the sum of its proper divisors (5025742).

7897538 is a wasteful number, since it uses less digits than its factorization.

7897538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358992.

The product of its digits is 423360, while the sum is 47.

The square root of 7897538 is about 2810.2558602376. The cubic root of 7897538 is about 199.1424785395.

The spelling of 7897538 in words is "seven million, eight hundred ninety-seven thousand, five hundred thirty-eight".