89779043 has 2 divisors, whose sum is σ = 89779044. Its totient is φ = 89779042.

The previous prime is 89779031. The next prime is 89779073. The reversal of 89779043 is 34097798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89779043 - 2¹⁰ = 89778019 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89779073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44889521 + 44889522.

It is an arithmetic number, because the mean of its divisors is an integer number (44889522).

Almost surely, 2^89779043 is an apocalyptic number.

89779043 is a deficient number, since it is larger than the sum of its proper divisors (1).

89779043 is an equidigital number, since it uses as much as digits as its factorization.

89779043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 89779043 is about 9475.1803676764. The cubic root of 89779043 is about 447.7734342138.

The spelling of 89779043 in words is "eighty-nine million, seven hundred seventy-nine thousand, forty-three".