85405832 has 16 divisors (see below), whose sum is σ = 160394640. Its totient is φ = 42633936.

The previous prime is 85405813. The next prime is 85405847. The reversal of 85405832 is 23850458.

It is a super-2 number, since 2×85405832² = 14588312279224448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 85405792 and 85405801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158 + ... + 13445.

It is an arithmetic number, because the mean of its divisors is an integer number (10024665).

Almost surely, 2^85405832 is an apocalyptic number.

It is an amenable number.

85405832 is a deficient number, since it is larger than the sum of its proper divisors (74988808).

85405832 is a wasteful number, since it uses less digits than its factorization.

85405832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17252 (or 17248 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 85405832 is about 9241.5275793561. The cubic root of 85405832 is about 440.3816110826.

The spelling of 85405832 in words is "eighty-five million, four hundred five thousand, eight hundred thirty-two".