89744405 has 4 divisors (see below), whose sum is σ = 107693292. Its totient is φ = 71795520.

The previous prime is 89744401. The next prime is 89744407. The reversal of 89744405 is 50444798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50444798 = 2 ⋅25222399.

It can be written as a sum of positive squares in 2 ways, for example, as 60248644 + 29495761 = 7762^2 + 5431^2 .

It is not a de Polignac number, because 89744405 - 2² = 89744401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89744401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8974436 + ... + 8974445.

It is an arithmetic number, because the mean of its divisors is an integer number (26923323).

Almost surely, 2^89744405 is an apocalyptic number.

It is an amenable number.

89744405 is a deficient number, since it is larger than the sum of its proper divisors (17948887).

89744405 is a wasteful number, since it uses less digits than its factorization.

89744405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17948886.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 89744405 is about 9473.3523633400. The cubic root of 89744405 is about 447.7158410726.

The spelling of 89744405 in words is "eighty-nine million, seven hundred forty-four thousand, four hundred five".