90897443 has 16 divisors (see below), whose sum is σ = 112121856. Its totient is φ = 71759520.

The previous prime is 90897427. The next prime is 90897467. The reversal of 90897443 is 34479809.

It is not a de Polignac number, because 90897443 - 2⁴ = 90897427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90897394 and 90897403.

It is not an unprimeable number, because it can be changed into a prime (90897413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56630 + ... + 58212.

It is an arithmetic number, because the mean of its divisors is an integer number (7007616).

Almost surely, 2^90897443 is an apocalyptic number.

90897443 is a deficient number, since it is larger than the sum of its proper divisors (21224413).

90897443 is a wasteful number, since it uses less digits than its factorization.

90897443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 90897443 is about 9534.0150513831. The cubic root of 90897443 is about 449.6251083434.

The spelling of 90897443 in words is "ninety million, eight hundred ninety-seven thousand, four hundred forty-three".