86404197 has 16 divisors (see below), whose sum is σ = 126097920. Its totient is φ = 52191600.

The previous prime is 86404193. The next prime is 86404247. The reversal of 86404197 is 79140468.

It is a happy number.

It is not a de Polignac number, because 86404197 - 2² = 86404193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86404193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6054 + ... + 14472.

It is an arithmetic number, because the mean of its divisors is an integer number (7881120).

Almost surely, 2^86404197 is an apocalyptic number.

It is an amenable number.

86404197 is a deficient number, since it is larger than the sum of its proper divisors (39693723).

86404197 is a wasteful number, since it uses less digits than its factorization.

86404197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8744.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 86404197 is about 9295.3857908104. The cubic root of 86404197 is about 442.0909379988.

The spelling of 86404197 in words is "eighty-six million, four hundred four thousand, one hundred ninety-seven".