86430491 has 4 divisors (see below), whose sum is σ = 98777712. Its totient is φ = 74083272.

The previous prime is 86430451. The next prime is 86430497. The reversal of 86430491 is 19403468.

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

It is a cyclic number.

It is not a de Polignac number, because 86430491 - 2¹⁰ = 86429467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86430497) 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, 6173600 + ... + 6173613.

It is an arithmetic number, because the mean of its divisors is an integer number (24694428).

Almost surely, 2^86430491 is an apocalyptic number.

86430491 is a deficient number, since it is larger than the sum of its proper divisors (12347221).

86430491 is a wasteful number, since it uses less digits than its factorization.

86430491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12347220.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 86430491 is about 9296.8000408743. The cubic root of 86430491 is about 442.1357782596.

The spelling of 86430491 in words is "eighty-six million, four hundred thirty thousand, four hundred ninety-one".