85811402 has 8 divisors (see below), whose sum is σ = 131710656. Its totient is φ = 41907852.

The previous prime is 85811371. The next prime is 85811417. The reversal of 85811402 is 20411858.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 498818 + ... + 498989.

It is an arithmetic number, because the mean of its divisors is an integer number (16463832).

Almost surely, 2^85811402 is an apocalyptic number.

85811402 is a deficient number, since it is larger than the sum of its proper divisors (45899254).

85811402 is a wasteful number, since it uses less digits than its factorization.

85811402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997852.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 85811402 is about 9263.4443918016. Note that the first 3 decimals coincide. The cubic root of 85811402 is about 441.0775963265.

The spelling of 85811402 in words is "eighty-five million, eight hundred eleven thousand, four hundred two".