863553396 has 12 divisors (see below), whose sum is σ = 2014957952. Its totient is φ = 287851128.

The previous prime is 863553373. The next prime is 863553463. The reversal of 863553396 is 693355368.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35981380 + ... + 35981403.

Almost surely, 2^863553396 is an apocalyptic number.

It is an amenable number.

863553396 is an abundant number, since it is smaller than the sum of its proper divisors (1151404556).

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

863553396 is a wasteful number, since it uses less digits than its factorization.

863553396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71962790 (or 71962788 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 48.

The square root of 863553396 is about 29386.2790431181. The cubic root of 863553396 is about 952.2764964945.

The spelling of 863553396 in words is "eight hundred sixty-three million, five hundred fifty-three thousand, three hundred ninety-six".