89270393 has 2 divisors, whose sum is σ = 89270394. Its totient is φ = 89270392.

The previous prime is 89270371. The next prime is 89270399. The reversal of 89270393 is 39307298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85895824 + 3374569 = 9268^2 + 1837^2 .

It is a cyclic number.

It is not a de Polignac number, because 89270393 - 2²⁴ = 72493177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89270393.

It is not a weakly prime, because it can be changed into another prime (89270399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44635196 + 44635197.

It is an arithmetic number, because the mean of its divisors is an integer number (44635197).

Almost surely, 2^89270393 is an apocalyptic number.

It is an amenable number.

89270393 is a deficient number, since it is larger than the sum of its proper divisors (1).

89270393 is an equidigital number, since it uses as much as digits as its factorization.

89270393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 89270393 is about 9448.3010642125. The cubic root of 89270393 is about 446.9262006831.

The spelling of 89270393 in words is "eighty-nine million, two hundred seventy thousand, three hundred ninety-three".