85881946 has 8 divisors (see below), whose sum is σ = 128931264. Its totient is φ = 42904860.

The previous prime is 85881941. The next prime is 85881949. The reversal of 85881946 is 64918858.

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

It is a self number, because there is not a number n which added to its sum of digits gives 85881946.

It is not an unprimeable number, because it can be changed into a prime (85881941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14980 + ... + 19903.

It is an arithmetic number, because the mean of its divisors is an integer number (16116408).

Almost surely, 2^85881946 is an apocalyptic number.

85881946 is a deficient number, since it is larger than the sum of its proper divisors (43049318).

85881946 is a wasteful number, since it uses less digits than its factorization.

85881946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36116.

The product of its digits is 552960, while the sum is 49.

The square root of 85881946 is about 9267.2512645336. The cubic root of 85881946 is about 441.1984305228.

The spelling of 85881946 in words is "eighty-five million, eight hundred eighty-one thousand, nine hundred forty-six".