89497949 has 2 divisors, whose sum is σ = 89497950. Its totient is φ = 89497948.

The previous prime is 89497913. The next prime is 89497951. The reversal of 89497949 is 94979498.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88924900 + 573049 = 9430^2 + 757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89497949 is a prime.

Together with 89497951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89497249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44748974 + 44748975.

It is an arithmetic number, because the mean of its divisors is an integer number (44748975).

Almost surely, 2^89497949 is an apocalyptic number.

It is an amenable number.

89497949 is a deficient number, since it is larger than the sum of its proper divisors (1).

89497949 is an equidigital number, since it uses as much as digits as its factorization.

89497949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 59.

The square root of 89497949 is about 9460.3355648730. The cubic root of 89497949 is about 447.3056263932.

The spelling of 89497949 in words is "eighty-nine million, four hundred ninety-seven thousand, nine hundred forty-nine".