90924447 has 8 divisors (see below), whose sum is σ = 122595120. Its totient is φ = 59935040.

The previous prime is 90924439. The next prime is 90924467. The reversal of 90924447 is 74442909.

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 90924447 - 2³ = 90924439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90924467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170004 + ... + 170537.

It is an arithmetic number, because the mean of its divisors is an integer number (15324390).

Almost surely, 2^90924447 is an apocalyptic number.

90924447 is a deficient number, since it is larger than the sum of its proper divisors (31670673).

90924447 is a wasteful number, since it uses less digits than its factorization.

90924447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340633.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 90924447 is about 9535.4311386534. The cubic root of 90924447 is about 449.6696291200.

The spelling of 90924447 in words is "ninety million, nine hundred twenty-four thousand, four hundred forty-seven".