89942533 has 2 divisors, whose sum is σ = 89942534. Its totient is φ = 89942532.

The previous prime is 89942521. The next prime is 89942617. The reversal of 89942533 is 33524998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57486724 + 32455809 = 7582^2 + 5697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89942533 is a prime.

It is a super-3 number, since 3×89942533³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 89942533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89942513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44971266 + 44971267.

It is an arithmetic number, because the mean of its divisors is an integer number (44971267).

Almost surely, 2^89942533 is an apocalyptic number.

It is an amenable number.

89942533 is a deficient number, since it is larger than the sum of its proper divisors (1).

89942533 is an equidigital number, since it uses as much as digits as its factorization.

89942533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 89942533 is about 9483.8037200271. The cubic root of 89942533 is about 448.0450717966.

The spelling of 89942533 in words is "eighty-nine million, nine hundred forty-two thousand, five hundred thirty-three".