8097940 has 24 divisors (see below), whose sum is σ = 17107272. Its totient is φ = 3219840.

The previous prime is 8097917. The next prime is 8097941. The reversal of 8097940 is 497908.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 156816 + 7941124 = 396^2 + 2818^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8097940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8097941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (712803).

Almost surely, 2^8097940 is an apocalyptic number.

It is an amenable number.

8097940 is an abundant number, since it is smaller than the sum of its proper divisors (9009332).

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

8097940 is a wasteful number, since it uses less digits than its factorization.

8097940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427 (or 2425 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 8097940 is about 2845.6879660286. The cubic root of 8097940 is about 200.8128584963.

The spelling of 8097940 in words is "eight million, ninety-seven thousand, nine hundred forty".