90344427 has 8 divisors (see below), whose sum is σ = 120618960. Its totient is φ = 60149760.

The previous prime is 90344413. The next prime is 90344453. The reversal of 90344427 is 72444309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90344427 - 2⁶ = 90344363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90344497) 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, 17274 + ... + 21887.

It is an arithmetic number, because the mean of its divisors is an integer number (15077370).

Almost surely, 2^90344427 is an apocalyptic number.

90344427 is a deficient number, since it is larger than the sum of its proper divisors (30274533).

90344427 is a wasteful number, since it uses less digits than its factorization.

90344427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39933.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 90344427 is about 9504.9685428201. The cubic root of 90344427 is about 448.7114198307.

The spelling of 90344427 in words is "ninety million, three hundred forty-four thousand, four hundred twenty-seven".