86450431 has 8 divisors (see below), whose sum is σ = 87121440. Its totient is φ = 85782528.

The previous prime is 86450347. The next prime is 86450443. The reversal of 86450431 is 13405468.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86450431 - 2⁷ = 86450303 is a prime.

It is a super-2 number, since 2×86450431² = 14947354040171522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86450393 and 86450402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86450471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91795 + ... + 92731.

It is an arithmetic number, because the mean of its divisors is an integer number (10890180).

Almost surely, 2^86450431 is an apocalyptic number.

86450431 is a deficient number, since it is larger than the sum of its proper divisors (671009).

86450431 is a wasteful number, since it uses less digits than its factorization.

86450431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 86450431 is about 9297.8723910366. The cubic root of 86450431 is about 442.1697767148.

Adding to 86450431 its reverse (13405468), we get a palindrome (99855899).

The spelling of 86450431 in words is "eighty-six million, four hundred fifty thousand, four hundred thirty-one".