89412991 has 2 divisors, whose sum is σ = 89412992. Its totient is φ = 89412990.

The previous prime is 89412971. The next prime is 89413019. The reversal of 89412991 is 19921498.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89412991 - 2¹¹ = 89410943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89412901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44706495 + 44706496.

It is an arithmetic number, because the mean of its divisors is an integer number (44706496).

Almost surely, 2^89412991 is an apocalyptic number.

89412991 is a deficient number, since it is larger than the sum of its proper divisors (1).

89412991 is an equidigital number, since it uses as much as digits as its factorization.

89412991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 43.

The square root of 89412991 is about 9455.8442774826. The cubic root of 89412991 is about 447.1640431763.

The spelling of 89412991 in words is "eighty-nine million, four hundred twelve thousand, nine hundred ninety-one".