90447699 has 8 divisors (see below), whose sum is σ = 121768192. Its totient is φ = 59712840.

The previous prime is 90447697. The next prime is 90447703. The reversal of 90447699 is 99674409.

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

It is not a de Polignac number, because 90447699 - 2¹ = 90447697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90447697) 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, 146047 + ... + 146664.

It is an arithmetic number, because the mean of its divisors is an integer number (15221024).

Almost surely, 2^90447699 is an apocalyptic number.

90447699 is a deficient number, since it is larger than the sum of its proper divisors (31320493).

90447699 is a wasteful number, since it uses less digits than its factorization.

90447699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292817.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 90447699 is about 9510.3995184219. The cubic root of 90447699 is about 448.8823275513.

The spelling of 90447699 in words is "ninety million, four hundred forty-seven thousand, six hundred ninety-nine".