89949901 has 2 divisors, whose sum is σ = 89949902. Its totient is φ = 89949900.

The previous prime is 89949889. The next prime is 89949931. The reversal of 89949901 is 10994998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86974276 + 2975625 = 9326^2 + 1725^2 .

It is a cyclic number.

It is not a de Polignac number, because 89949901 - 2¹¹ = 89947853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89949931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44974950 + 44974951.

It is an arithmetic number, because the mean of its divisors is an integer number (44974951).

Almost surely, 2^89949901 is an apocalyptic number.

It is an amenable number.

89949901 is a deficient number, since it is larger than the sum of its proper divisors (1).

89949901 is an equidigital number, since it uses as much as digits as its factorization.

89949901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 89949901 is about 9484.1921638060. The cubic root of 89949901 is about 448.0573059267.

The spelling of 89949901 in words is "eighty-nine million, nine hundred forty-nine thousand, nine hundred one".