85951319 has 4 divisors (see below), whose sum is σ = 87573096. Its totient is φ = 84329544.

The previous prime is 85951309. The next prime is 85951339. The reversal of 85951319 is 91315958.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85951319 is a prime.

It is a super-2 number, since 2×85951319² = 14775258475679522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85951309) 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, 810809 + ... + 810914.

It is an arithmetic number, because the mean of its divisors is an integer number (21893274).

Almost surely, 2^85951319 is an apocalyptic number.

85951319 is a deficient number, since it is larger than the sum of its proper divisors (1621777).

85951319 is a wasteful number, since it uses less digits than its factorization.

85951319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621776.

The product of its digits is 48600, while the sum is 41.

The square root of 85951319 is about 9270.9934203407. The cubic root of 85951319 is about 441.3171944098.

The spelling of 85951319 in words is "eighty-five million, nine hundred fifty-one thousand, three hundred nineteen".