86245399 has 4 divisors (see below), whose sum is σ = 87659320. Its totient is φ = 84831480.

The previous prime is 86245381. The next prime is 86245417. The reversal of 86245399 is 99354268.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (86245381) and next prime (86245417).

It is not a de Polignac number, because 86245399 - 2²¹ = 84148247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86245309) 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, 706869 + ... + 706990.

It is an arithmetic number, because the mean of its divisors is an integer number (21914830).

Almost surely, 2^86245399 is an apocalyptic number.

86245399 is a deficient number, since it is larger than the sum of its proper divisors (1413921).

86245399 is a wasteful number, since it uses less digits than its factorization.

86245399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413920.

The product of its digits is 466560, while the sum is 46.

The square root of 86245399 is about 9286.8400976866. The cubic root of 86245399 is about 441.8199395566.

The spelling of 86245399 in words is "eighty-six million, two hundred forty-five thousand, three hundred ninety-nine".