89940447 has 6 divisors (see below), whose sum is σ = 129913992. Its totient is φ = 59960292.

The previous prime is 89940443. The next prime is 89940467. The reversal of 89940447 is 74404998.

It is not a de Polignac number, because 89940447 - 2² = 89940443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89940443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4996683 + ... + 4996700.

It is an arithmetic number, because the mean of its divisors is an integer number (21652332).

Almost surely, 2^89940447 is an apocalyptic number.

89940447 is a deficient number, since it is larger than the sum of its proper divisors (39973545).

89940447 is a wasteful number, since it uses less digits than its factorization.

89940447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9993389 (or 9993386 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 89940447 is about 9483.6937424191. The cubic root of 89940447 is about 448.0416079951.

The spelling of 89940447 in words is "eighty-nine million, nine hundred forty thousand, four hundred forty-seven".