85167419 has 4 divisors (see below), whose sum is σ = 85195440. Its totient is φ = 85139400.

The previous prime is 85167389. The next prime is 85167427. The reversal of 85167419 is 91476158.

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-85167419 is a prime.

It is a super-2 number, since 2×85167419² = 14506978518243122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85167469) 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, 8807 + ... + 15744.

It is an arithmetic number, because the mean of its divisors is an integer number (21298860).

Almost surely, 2^85167419 is an apocalyptic number.

85167419 is a deficient number, since it is larger than the sum of its proper divisors (28021).

85167419 is a wasteful number, since it uses less digits than its factorization.

85167419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28020.

The product of its digits is 60480, while the sum is 41.

The square root of 85167419 is about 9228.6195609094. The cubic root of 85167419 is about 439.9714495938.

The spelling of 85167419 in words is "eighty-five million, one hundred sixty-seven thousand, four hundred nineteen".