85431883 has 8 divisors (see below), whose sum is σ = 88520400. Its totient is φ = 82352928.

The previous prime is 85431881. The next prime is 85431887. The reversal of 85431883 is 38813458.

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

It is a cyclic number.

It is not a de Polignac number, because 85431883 - 2¹ = 85431881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85431881) 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, 19248 + ... + 23266.

It is an arithmetic number, because the mean of its divisors is an integer number (11065050).

Almost surely, 2^85431883 is an apocalyptic number.

85431883 is a deficient number, since it is larger than the sum of its proper divisors (3088517).

85431883 is a wasteful number, since it uses less digits than its factorization.

85431883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4781.

The product of its digits is 92160, while the sum is 40.

The square root of 85431883 is about 9242.9369250255. The cubic root of 85431883 is about 440.4263824790.

The spelling of 85431883 in words is "eighty-five million, four hundred thirty-one thousand, eight hundred eighty-three".