90328513 has 8 divisors (see below), whose sum is σ = 101719296. Its totient is φ = 79467600.

The previous prime is 90328499. The next prime is 90328517. The reversal of 90328513 is 31582309.

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 90328513 - 2⁹ = 90328001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90328517) 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, 132106 + ... + 132787.

It is an arithmetic number, because the mean of its divisors is an integer number (12714912).

Almost surely, 2^90328513 is an apocalyptic number.

It is an amenable number.

90328513 is a deficient number, since it is larger than the sum of its proper divisors (11390783).

90328513 is a wasteful number, since it uses less digits than its factorization.

90328513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264935.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 90328513 is about 9504.1313648329. The cubic root of 90328513 is about 448.6850717275.

The spelling of 90328513 in words is "ninety million, three hundred twenty-eight thousand, five hundred thirteen".