86242469 has 4 divisors (see below), whose sum is σ = 86262720. Its totient is φ = 86222220.

The previous prime is 86242451. The next prime is 86242517. The reversal of 86242469 is 96424268.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86242469 - 2²⁰ = 85193893 is a prime.

It is a super-2 number, since 2×86242469² = 14875526918431922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86242439) 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, 989 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (21565680).

Almost surely, 2^86242469 is an apocalyptic number.

It is an amenable number.

86242469 is a deficient number, since it is larger than the sum of its proper divisors (20251).

86242469 is a wasteful number, since it uses less digits than its factorization.

86242469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20250.

The product of its digits is 165888, while the sum is 41.

The square root of 86242469 is about 9286.6823462418. The cubic root of 86242469 is about 441.8149362091.

The spelling of 86242469 in words is "eighty-six million, two hundred forty-two thousand, four hundred sixty-nine".