85681902 has 16 divisors (see below), whose sum is σ = 173290320. Its totient is φ = 28239552.

The previous prime is 85681901. The next prime is 85681903. The reversal of 85681902 is 20918658.

It is an interprime number because it is at equal distance from previous prime (85681901) and next prime (85681903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85681901) 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, 79693 + ... + 80760.

It is an arithmetic number, because the mean of its divisors is an integer number (10830645).

Almost surely, 2^85681902 is an apocalyptic number.

85681902 is an abundant number, since it is smaller than the sum of its proper divisors (87608418).

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

85681902 is a wasteful number, since it uses less digits than its factorization.

85681902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160547.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 85681902 is about 9256.4519120449. The cubic root of 85681902 is about 440.8556044350.

The spelling of 85681902 in words is "eighty-five million, six hundred eighty-one thousand, nine hundred two".