863397946 has 12 divisors (see below), whose sum is σ = 1325921562. Its totient is φ = 421657656.

The previous prime is 863397929. The next prime is 863398021. The reversal of 863397946 is 649793368.

It can be written as a sum of positive squares in only one way, i.e., 513520921 + 349877025 = 22661^2 + 18705^2 .

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, 113041 + ... + 120436.

Almost surely, 2^863397946 is an apocalyptic number.

863397946 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

863397946 is a deficient number, since it is larger than the sum of its proper divisors (462523616).

863397946 is a wasteful number, since it uses less digits than its factorization.

863397946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233565 (or 233522 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 55.

The square root of 863397946 is about 29383.6339822017. The cubic root of 863397946 is about 952.2193526570.

The spelling of 863397946 in words is "eight hundred sixty-three million, three hundred ninety-seven thousand, nine hundred forty-six".