89524639 has 2 divisors, whose sum is σ = 89524640. Its totient is φ = 89524638.

The previous prime is 89524627. The next prime is 89524649. The reversal of 89524639 is 93642598.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89524639 - 2¹³ = 89516447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89524649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44762319 + 44762320.

It is an arithmetic number, because the mean of its divisors is an integer number (44762320).

Almost surely, 2^89524639 is an apocalyptic number.

89524639 is a deficient number, since it is larger than the sum of its proper divisors (1).

89524639 is an equidigital number, since it uses as much as digits as its factorization.

89524639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 89524639 is about 9461.7460862147. The cubic root of 89524639 is about 447.3500870046.

The spelling of 89524639 in words is "eighty-nine million, five hundred twenty-four thousand, six hundred thirty-nine".