89292391 has 2 divisors, whose sum is σ = 89292392. Its totient is φ = 89292390.

The previous prime is 89292319. The next prime is 89292397. The reversal of 89292391 is 19329298.

Together with previous prime (89292319) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89292391 - 2¹⁹ = 88768103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89292397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44646195 + 44646196.

It is an arithmetic number, because the mean of its divisors is an integer number (44646196).

Almost surely, 2^89292391 is an apocalyptic number.

89292391 is a deficient number, since it is larger than the sum of its proper divisors (1).

89292391 is an equidigital number, since it uses as much as digits as its factorization.

89292391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 43.

The square root of 89292391 is about 9449.4651171376. The cubic root of 89292391 is about 446.9629081691.

The spelling of 89292391 in words is "eighty-nine million, two hundred ninety-two thousand, three hundred ninety-one".