85399419 has 16 divisors (see below), whose sum is σ = 133160192. Its totient is φ = 47664288.

The previous prime is 85399399. The next prime is 85399421. The reversal of 85399419 is 91499358.

It is not a de Polignac number, because 85399419 - 2⁵ = 85399387 is a prime.

It is a super-2 number, since 2×85399419² = 14586121531075122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85398419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46384 + ... + 48189.

It is an arithmetic number, because the mean of its divisors is an integer number (8322512).

Almost surely, 2^85399419 is an apocalyptic number.

85399419 is a deficient number, since it is larger than the sum of its proper divisors (47760773).

85399419 is a wasteful number, since it uses less digits than its factorization.

85399419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94626.

The product of its digits is 349920, while the sum is 48.

The square root of 85399419 is about 9241.1806063944. The cubic root of 85399419 is about 440.3705882680.

The spelling of 85399419 in words is "eighty-five million, three hundred ninety-nine thousand, four hundred nineteen".