89742259 has 2 divisors, whose sum is σ = 89742260. Its totient is φ = 89742258.

The previous prime is 89742221. The next prime is 89742277. The reversal of 89742259 is 95224798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89742259 - 2¹³ = 89734067 is a prime.

It is not a weakly prime, because it can be changed into another prime (89742659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44871129 + 44871130.

It is an arithmetic number, because the mean of its divisors is an integer number (44871130).

Almost surely, 2^89742259 is an apocalyptic number.

89742259 is a deficient number, since it is larger than the sum of its proper divisors (1).

89742259 is an equidigital number, since it uses as much as digits as its factorization.

89742259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 89742259 is about 9473.2390975843. The cubic root of 89742259 is about 447.7122723976.

The spelling of 89742259 in words is "eighty-nine million, seven hundred forty-two thousand, two hundred fifty-nine".