85739872 has 12 divisors (see below), whose sum is σ = 168800436. Its totient is φ = 42869920.

The previous prime is 85739867. The next prime is 85739873. The reversal of 85739872 is 27893758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85739873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1339654 + ... + 1339717.

It is an arithmetic number, because the mean of its divisors is an integer number (14066703).

Almost surely, 2^85739872 is an apocalyptic number.

It is an amenable number.

85739872 is a deficient number, since it is larger than the sum of its proper divisors (83060564).

85739872 is a wasteful number, since it uses less digits than its factorization.

85739872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679381 (or 2679373 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 85739872 is about 9259.5827119801. The cubic root of 85739872 is about 440.9550055818.

The spelling of 85739872 in words is "eighty-five million, seven hundred thirty-nine thousand, eight hundred seventy-two".