806399952 has 40 divisors (see below), whose sum is σ = 2092169664. Its totient is φ = 267642624.

The previous prime is 806399933. The next prime is 806399953. The reversal of 806399952 is 259993608.

It is a junction number, because it is equal to n+sod(n) for n = 806399895 and 806399904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806399953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24868 + ... + 47235.

Almost surely, 2^806399952 is an apocalyptic number.

It is an amenable number.

806399952 is an abundant number, since it is smaller than the sum of its proper divisors (1285769712).

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

806399952 is a wasteful number, since it uses less digits than its factorization.

806399952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72347 (or 72341 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 806399952 is about 28397.1821137239. The cubic root of 806399952 is about 930.7866901122.

The spelling of 806399952 in words is "eight hundred six million, three hundred ninety-nine thousand, nine hundred fifty-two".