7890497 has 4 divisors (see below), whose sum is σ = 7998660. Its totient is φ = 7782336.

The previous prime is 7890479. The next prime is 7890503. The reversal of 7890497 is 7940987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7940987 = 59 ⋅134593.

It can be written as a sum of positive squares in 2 ways, for example, as 4490161 + 3400336 = 2119^2 + 1844^2 .

It is a cyclic number.

It is not a de Polignac number, because 7890497 - 2¹⁶ = 7824961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7890427) 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, 53972 + ... + 54117.

It is an arithmetic number, because the mean of its divisors is an integer number (1999665).

Almost surely, 2^7890497 is an apocalyptic number.

It is an amenable number.

7890497 is a deficient number, since it is larger than the sum of its proper divisors (108163).

7890497 is a wasteful number, since it uses less digits than its factorization.

7890497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108162.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 7890497 is about 2809.0028479872. The cubic root of 7890497 is about 199.0832795379.

The spelling of 7890497 in words is "seven million, eight hundred ninety thousand, four hundred ninety-seven".