85939472 has 10 divisors (see below), whose sum is σ = 166507758. Its totient is φ = 42969728.

The previous prime is 85939457. The next prime is 85939481. The reversal of 85939472 is 27493958.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65545216 + 20394256 = 8096^2 + 4516^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2685593 + ... + 2685624.

Almost surely, 2^85939472 is an apocalyptic number.

It is an amenable number.

85939472 is a deficient number, since it is larger than the sum of its proper divisors (80568286).

85939472 is a wasteful number, since it uses less digits than its factorization.

85939472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371225 (or 5371219 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 85939472 is about 9270.3544700297. The cubic root of 85939472 is about 441.2969173309.

The spelling of 85939472 in words is "eighty-five million, nine hundred thirty-nine thousand, four hundred seventy-two".