86473229 has 4 divisors (see below), whose sum is σ = 89262720. Its totient is φ = 83683740.

The previous prime is 86473187. The next prime is 86473249. The reversal of 86473229 is 92237468.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-86473229 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 (86473249) 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, 1394699 + ... + 1394760.

It is an arithmetic number, because the mean of its divisors is an integer number (22315680).

Almost surely, 2^86473229 is an apocalyptic number.

It is an amenable number.

86473229 is a deficient number, since it is larger than the sum of its proper divisors (2789491).

86473229 is a wasteful number, since it uses less digits than its factorization.

86473229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789490.

The product of its digits is 145152, while the sum is 41.

The square root of 86473229 is about 9299.0982896193. The cubic root of 86473229 is about 442.2086417632.

The spelling of 86473229 in words is "eighty-six million, four hundred seventy-three thousand, two hundred twenty-nine".