8397090 has 48 divisors (see below), whose sum is σ = 23515128. Its totient is φ = 2066688.

The previous prime is 8397079. The next prime is 8397091. The reversal of 8397090 is 907938.

It can be written as a sum of positive squares in 4 ways, for example, as 7144929 + 1252161 = 2673^2 + 1119^2 .

It is a super-2 number, since 2×8397090² = 141022240936200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8397091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2419 + ... + 4758.

Almost surely, 2^8397090 is an apocalyptic number.

8397090 is an abundant number, since it is smaller than the sum of its proper divisors (15118038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8397090 is a wasteful number, since it uses less digits than its factorization.

8397090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7203 (or 7200 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 8397090 is about 2897.7732830572. The cubic root of 8397090 is about 203.2557947359.

The spelling of 8397090 in words is "eight million, three hundred ninety-seven thousand, ninety".