90817413 has 4 divisors (see below), whose sum is σ = 121089888. Its totient is φ = 60544940.

The previous prime is 90817411. The next prime is 90817421. The reversal of 90817413 is 31471809.

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 not a de Polignac number, because 90817413 - 2¹ = 90817411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90817411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15136233 + ... + 15136238.

It is an arithmetic number, because the mean of its divisors is an integer number (30272472).

Almost surely, 2^90817413 is an apocalyptic number.

It is an amenable number.

90817413 is a deficient number, since it is larger than the sum of its proper divisors (30272475).

90817413 is a wasteful number, since it uses less digits than its factorization.

90817413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30272474.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 90817413 is about 9529.8170496605. The cubic root of 90817413 is about 449.4931132000.

The spelling of 90817413 in words is "ninety million, eight hundred seventeen thousand, four hundred thirteen".