89494949 has 4 divisors (see below), whose sum is σ = 90363936. Its totient is φ = 88625964.

The previous prime is 89494939. The next prime is 89494961. The reversal of 89494949 is 94949498.

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 a de Polignac number, because none of the positive numbers 2^k-89494949 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89494894 and 89494903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89494939) 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, 434339 + ... + 434544.

It is an arithmetic number, because the mean of its divisors is an integer number (22590984).

Almost surely, 2^89494949 is an apocalyptic number.

It is an amenable number.

89494949 is a deficient number, since it is larger than the sum of its proper divisors (868987).

89494949 is a wasteful number, since it uses less digits than its factorization.

89494949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868986.

The product of its digits is 3359232, while the sum is 56.

The square root of 89494949 is about 9460.1770068007. The cubic root of 89494949 is about 447.3006283946.

The spelling of 89494949 in words is "eighty-nine million, four hundred ninety-four thousand, nine hundred forty-nine".