863145396 has 30 divisors (see below), whose sum is σ = 2256433410. Its totient is φ = 287715024.

The previous prime is 863145383. The next prime is 863145419. The reversal of 863145396 is 693541368.

863145396 is a `hidden beast` number, since 8 + 631 + 4 + 5 + 3 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 857669796 + 5475600 = 29286^2 + 2340^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1331691 + ... + 1332338.

It is an arithmetic number, because the mean of its divisors is an integer number (75214447).

Almost surely, 2^863145396 is an apocalyptic number.

It is an amenable number.

863145396 is an abundant number, since it is smaller than the sum of its proper divisors (1393288014).

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

863145396 is a wasteful number, since it uses less digits than its factorization.

863145396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664045 (or 2664034 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 863145396 is about 29379.3362076137. The cubic root of 863145396 is about 952.1264999734.

The spelling of 863145396 in words is "eight hundred sixty-three million, one hundred forty-five thousand, three hundred ninety-six".