85791419 has 8 divisors (see below), whose sum is σ = 100697568. Its totient is φ = 71547840.

The previous prime is 85791413. The next prime is 85791427. The reversal of 85791419 is 91419758.

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

It is a de Polignac number, because none of the positive numbers 2^k-85791419 is a prime.

It is a super-2 number, since 2×85791419² = 14720335148067122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85791419.

It is not an unprimeable number, because it can be changed into a prime (85791413) 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, 165362 + ... + 165879.

It is an arithmetic number, because the mean of its divisors is an integer number (12587196).

Almost surely, 2^85791419 is an apocalyptic number.

85791419 is a deficient number, since it is larger than the sum of its proper divisors (14906149).

85791419 is a wasteful number, since it uses less digits than its factorization.

85791419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331285.

The product of its digits is 90720, while the sum is 44.

The square root of 85791419 is about 9262.3657345194. The cubic root of 85791419 is about 441.0433555858.

The spelling of 85791419 in words is "eighty-five million, seven hundred ninety-one thousand, four hundred nineteen".