864354492 has 18 divisors (see below), whose sum is σ = 2184896168. Its totient is φ = 288118152.

The previous prime is 864354461. The next prime is 864354523. The reversal of 864354492 is 294453468.

It is an interprime number because it is at equal distance from previous prime (864354461) and next prime (864354523).

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12004888 + ... + 12004959.

Almost surely, 2^864354492 is an apocalyptic number.

It is an amenable number.

864354492 is an abundant number, since it is smaller than the sum of its proper divisors (1320541676).

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

864354492 is a wasteful number, since it uses less digits than its factorization.

864354492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24009857 (or 24009852 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 864354492 is about 29399.9063263814. The cubic root of 864354492 is about 952.5708728548.

The spelling of 864354492 in words is "eight hundred sixty-four million, three hundred fifty-four thousand, four hundred ninety-two".