8390193604 has 45 divisors (see below), whose sum is σ = 15965277531. Its totient is φ = 3858107760.

The previous prime is 8390193533. The next prime is 8390193619. The reversal of 8390193604 is 4063910938.

The square root of 8390193604 is 91598.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 4159992004 + 4230201600 = 64498^2 + 65040^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 30959989 + ... + 30960259.

Almost surely, 2^8390193604 is an apocalyptic number.

8390193604 is the 91598-th square number.

It is an amenable number.

8390193604 is a deficient number, since it is larger than the sum of its proper divisors (7575083927).

8390193604 is an frugal number, since it uses more digits than its factorization.

8390193604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The cubic root of 8390193604 is about 2032.0013591581.

The spelling of 8390193604 in words is "eight billion, three hundred ninety million, one hundred ninety-three thousand, six hundred four".