86220463 has 4 divisors (see below), whose sum is σ = 98537680. Its totient is φ = 73903248.

The previous prime is 86220443. The next prime is 86220467. The reversal of 86220463 is 36402268.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86220463 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 (86220467) 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, 6158598 + ... + 6158611.

It is an arithmetic number, because the mean of its divisors is an integer number (24634420).

Almost surely, 2^86220463 is an apocalyptic number.

86220463 is a deficient number, since it is larger than the sum of its proper divisors (12317217).

86220463 is a wasteful number, since it uses less digits than its factorization.

86220463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12317216.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 86220463 is about 9285.4974557102. The cubic root of 86220463 is about 441.7773545448. Note that the first 3 decimals are identical.

The spelling of 86220463 in words is "eighty-six million, two hundred twenty thousand, four hundred sixty-three".