86905419 has 16 divisors (see below), whose sum is σ = 118325760. Its totient is φ = 56720160.

The previous prime is 86905417. The next prime is 86905421. The reversal of 86905419 is 91450968.

It is an interprime number because it is at equal distance from previous prime (86905417) and next prime (86905421).

It is not a de Polignac number, because 86905419 - 2¹ = 86905417 is a prime.

It is a super-2 number, since 2×86905419² = 15105103703131122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86905417) 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, 42744 + ... + 44730.

It is an arithmetic number, because the mean of its divisors is an integer number (7395360).

Almost surely, 2^86905419 is an apocalyptic number.

86905419 is a deficient number, since it is larger than the sum of its proper divisors (31420341).

86905419 is a wasteful number, since it uses less digits than its factorization.

86905419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 86905419 is about 9322.3076005890. The cubic root of 86905419 is about 442.9441319481.

The spelling of 86905419 in words is "eighty-six million, nine hundred five thousand, four hundred nineteen".