7897497 has 4 divisors (see below), whose sum is σ = 10530000. Its totient is φ = 5264996.

The previous prime is 7897481. The next prime is 7897499. The reversal of 7897497 is 7947987.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7947987 = 3 ⋅2649329.

It is a cyclic number.

It is not a de Polignac number, because 7897497 - 2⁴ = 7897481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7897499) 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, 1316247 + ... + 1316252.

It is an arithmetic number, because the mean of its divisors is an integer number (2632500).

Almost surely, 2^7897497 is an apocalyptic number.

It is an amenable number.

7897497 is a deficient number, since it is larger than the sum of its proper divisors (2632503).

7897497 is a wasteful number, since it uses less digits than its factorization.

7897497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632502.

The product of its digits is 889056, while the sum is 51.

The square root of 7897497 is about 2810.2485655187. The cubic root of 7897497 is about 199.1421339234.

The spelling of 7897497 in words is "seven million, eight hundred ninety-seven thousand, four hundred ninety-seven".