86455429 has 4 divisors (see below), whose sum is σ = 88564140. Its totient is φ = 84346720.

The previous prime is 86455427. The next prime is 86455441. The reversal of 86455429 is 92455468.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27196225 + 59259204 = 5215^2 + 7698^2 .

It is a cyclic number.

It is not a de Polignac number, because 86455429 - 2¹ = 86455427 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 (86455423) 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, 1054294 + ... + 1054375.

It is an arithmetic number, because the mean of its divisors is an integer number (22141035).

Almost surely, 2^86455429 is an apocalyptic number.

It is an amenable number.

86455429 is a deficient number, since it is larger than the sum of its proper divisors (2108711).

86455429 is a wasteful number, since it uses less digits than its factorization.

86455429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108710.

The product of its digits is 345600, while the sum is 43.

The square root of 86455429 is about 9298.1411583176. The cubic root of 86455429 is about 442.1782976746.

The spelling of 86455429 in words is "eighty-six million, four hundred fifty-five thousand, four hundred twenty-nine".