90830215 has 8 divisors (see below), whose sum is σ = 124567200. Its totient is φ = 62283552.

The previous prime is 90830213. The next prime is 90830221. The reversal of 90830215 is 51203809.

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 90830215 - 2¹ = 90830213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90830213) 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, 1297540 + ... + 1297609.

It is an arithmetic number, because the mean of its divisors is an integer number (15570900).

Almost surely, 2^90830215 is an apocalyptic number.

90830215 is a deficient number, since it is larger than the sum of its proper divisors (33736985).

90830215 is a wasteful number, since it uses less digits than its factorization.

90830215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595161.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 90830215 is about 9530.4887073014. The cubic root of 90830215 is about 449.5142330135.

The spelling of 90830215 in words is "ninety million, eight hundred thirty thousand, two hundred fifteen".