89725117 has 2 divisors, whose sum is σ = 89725118. Its totient is φ = 89725116.

The previous prime is 89725091. The next prime is 89725123. The reversal of 89725117 is 71152798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69122596 + 20602521 = 8314^2 + 4539^2 .

It is a cyclic number.

It is not a de Polignac number, because 89725117 - 2⁷ = 89724989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89725117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89725147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44862558 + 44862559.

It is an arithmetic number, because the mean of its divisors is an integer number (44862559).

Almost surely, 2^89725117 is an apocalyptic number.

It is an amenable number.

89725117 is a deficient number, since it is larger than the sum of its proper divisors (1).

89725117 is an equidigital number, since it uses as much as digits as its factorization.

89725117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 40.

The square root of 89725117 is about 9472.3342951988. The cubic root of 89725117 is about 447.6837641914.

The spelling of 89725117 in words is "eighty-nine million, seven hundred twenty-five thousand, one hundred seventeen".