8307490 has 16 divisors (see below), whose sum is σ = 15032952. Its totient is φ = 3305344.

The previous prime is 8307487. The next prime is 8307491. The reversal of 8307490 is 947038.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8254129 + 53361 = 2873^2 + 231^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8307491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139 + ... + 4078.

Almost surely, 2^8307490 is an apocalyptic number.

8307490 is a deficient number, since it is larger than the sum of its proper divisors (6725462).

8307490 is a wasteful number, since it uses less digits than its factorization.

8307490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 8307490 is about 2882.2716735242. The cubic root of 8307490 is about 202.5302703313.

The spelling of 8307490 in words is "eight million, three hundred seven thousand, four hundred ninety".