85951442 has 8 divisors (see below), whose sum is σ = 128988300. Its totient is φ = 42955344.

The previous prime is 85951427. The next prime is 85951469. The reversal of 85951442 is 24415958.

It is a Cunningham number, because it is equal to 9271²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 85951441 + 1 = 9271^2 + 1^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 85951396 and 85951405.

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, 4217 + ... + 13772.

Almost surely, 2^85951442 is an apocalyptic number.

85951442 is a deficient number, since it is larger than the sum of its proper divisors (43036858).

85951442 is a wasteful number, since it uses less digits than its factorization.

85951442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20380.

The product of its digits is 57600, while the sum is 38.

The square root of 85951442 is about 9271.0000539316. Note that the first 4 decimals coincide. The cubic root of 85951442 is about 441.3174049242.

The spelling of 85951442 in words is "eighty-five million, nine hundred fifty-one thousand, four hundred forty-two".