89940943 has 2 divisors, whose sum is σ = 89940944. Its totient is φ = 89940942.

The previous prime is 89940899. The next prime is 89940953. The reversal of 89940943 is 34904998.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89940943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89940893 and 89940902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89940953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44970471 + 44970472.

It is an arithmetic number, because the mean of its divisors is an integer number (44970472).

Almost surely, 2^89940943 is an apocalyptic number.

89940943 is a deficient number, since it is larger than the sum of its proper divisors (1).

89940943 is an equidigital number, since it uses as much as digits as its factorization.

89940943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 89940943 is about 9483.7198925316. The cubic root of 89940943 is about 448.0424316076.

The spelling of 89940943 in words is "eighty-nine million, nine hundred forty thousand, nine hundred forty-three".