90445415 has 8 divisors (see below), whose sum is σ = 114246960. Its totient is φ = 68548032.

The previous prime is 90445393. The next prime is 90445417. The reversal of 90445415 is 51454409.

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 90445415 - 2⁶ = 90445351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90445417) 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 7 ways as a sum of consecutive naturals, for example, 475934 + ... + 476123.

It is an arithmetic number, because the mean of its divisors is an integer number (14280870).

Almost surely, 2^90445415 is an apocalyptic number.

90445415 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

90445415 is a deficient number, since it is larger than the sum of its proper divisors (23801545).

90445415 is a wasteful number, since it uses less digits than its factorization.

90445415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952081.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 90445415 is about 9510.2794385864. The cubic root of 90445415 is about 448.8785491029.

The spelling of 90445415 in words is "ninety million, four hundred forty-five thousand, four hundred fifteen".