85421996 has 12 divisors (see below), whose sum is σ = 163078440. Its totient is φ = 38828160.

The previous prime is 85421981. The next prime is 85422013. The reversal of 85421996 is 69912458.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1941409 = 85421996 / (8 + 5 + 4 + 2 + 1 + 9 + 9 + 6).

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, 970661 + ... + 970748.

It is an arithmetic number, because the mean of its divisors is an integer number (13589870).

Almost surely, 2^85421996 is an apocalyptic number.

It is an amenable number.

85421996 is a deficient number, since it is larger than the sum of its proper divisors (77656444).

85421996 is a wasteful number, since it uses less digits than its factorization.

85421996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941424 (or 1941422 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 85421996 is about 9242.4020687265. The cubic root of 85421996 is about 440.4093916965.

The spelling of 85421996 in words is "eighty-five million, four hundred twenty-one thousand, nine hundred ninety-six".