89756449 has 4 divisors (see below), whose sum is σ = 90837936. Its totient is φ = 88674964.

The previous prime is 89756393. The next prime is 89756453. The reversal of 89756449 is 94465798.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89756449 - 2¹³ = 89748257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89756396 and 89756405.

It is not an unprimeable number, because it can be changed into a prime (89753449) 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, 540619 + ... + 540784.

It is an arithmetic number, because the mean of its divisors is an integer number (22709484).

Almost surely, 2^89756449 is an apocalyptic number.

It is an amenable number.

89756449 is a deficient number, since it is larger than the sum of its proper divisors (1081487).

89756449 is a wasteful number, since it uses less digits than its factorization.

89756449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081486.

The product of its digits is 2177280, while the sum is 52.

The square root of 89756449 is about 9473.9880198362. The cubic root of 89756449 is about 447.7358684990.

The spelling of 89756449 in words is "eighty-nine million, seven hundred fifty-six thousand, four hundred forty-nine".