8190664 has 8 divisors (see below), whose sum is σ = 15357510. Its totient is φ = 4095328.

The previous prime is 8190661. The next prime is 8190667. The reversal of 8190664 is 4660918.

It is an interprime number because it is at equal distance from previous prime (8190661) and next prime (8190667).

It can be written as a sum of positive squares in only one way, i.e., 8168164 + 22500 = 2858^2 + 150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (8190661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511909 + ... + 511924.

Almost surely, 2^8190664 is an apocalyptic number.

It is an amenable number.

8190664 is a deficient number, since it is larger than the sum of its proper divisors (7166846).

8190664 is a wasteful number, since it uses less digits than its factorization.

8190664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023839 (or 1023835 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 8190664 is about 2861.9336120882. The cubic root of 8190664 is about 201.5764086991.

The spelling of 8190664 in words is "eight million, one hundred ninety thousand, six hundred sixty-four".