89815213 has 8 divisors (see below), whose sum is σ = 92183616. Its totient is φ = 87477600.

The previous prime is 89815211. The next prime is 89815249. The reversal of 89815213 is 31251898.

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 89815213 - 2¹ = 89815211 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 (89815211) 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, 1728 + ... + 13513.

It is an arithmetic number, because the mean of its divisors is an integer number (11522952).

Almost surely, 2^89815213 is an apocalyptic number.

89815213 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

89815213 is a deficient number, since it is larger than the sum of its proper divisors (2368403).

89815213 is a wasteful number, since it uses less digits than its factorization.

89815213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15395.

The product of its digits is 17280, while the sum is 37.

The square root of 89815213 is about 9477.0888462650. The cubic root of 89815213 is about 447.8335588266.

The spelling of 89815213 in words is "eighty-nine million, eight hundred fifteen thousand, two hundred thirteen".