89403649 has 2 divisors, whose sum is σ = 89403650. Its totient is φ = 89403648.

The previous prime is 89403593. The next prime is 89403673. The reversal of 89403649 is 94630498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67125249 + 22278400 = 8193^2 + 4720^2 .

It is a cyclic number.

It is not a de Polignac number, because 89403649 - 2⁷ = 89403521 is a prime.

It is not a weakly prime, because it can be changed into another prime (89403449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44701824 + 44701825.

It is an arithmetic number, because the mean of its divisors is an integer number (44701825).

Almost surely, 2^89403649 is an apocalyptic number.

It is an amenable number.

89403649 is a deficient number, since it is larger than the sum of its proper divisors (1).

89403649 is an equidigital number, since it uses as much as digits as its factorization.

89403649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 89403649 is about 9455.3502843628. The cubic root of 89403649 is about 447.1484691830.

The spelling of 89403649 in words is "eighty-nine million, four hundred three thousand, six hundred forty-nine".