89403863 has 2 divisors, whose sum is σ = 89403864. Its totient is φ = 89403862.

The previous prime is 89403859. The next prime is 89403869. The reversal of 89403863 is 36830498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89403863 - 2² = 89403859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89403863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89403869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44701931 + 44701932.

It is an arithmetic number, because the mean of its divisors is an integer number (44701932).

Almost surely, 2^89403863 is an apocalyptic number.

89403863 is a deficient number, since it is larger than the sum of its proper divisors (1).

89403863 is an equidigital number, since it uses as much as digits as its factorization.

89403863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 89403863 is about 9455.3616007004. The cubic root of 89403863 is about 447.1488259532.

The spelling of 89403863 in words is "eighty-nine million, four hundred three thousand, eight hundred sixty-three".