99671059 has 2 divisors, whose sum is σ = 99671060. Its totient is φ = 99671058.

The previous prime is 99671021. The next prime is 99671063. The reversal of 99671059 is 95017699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99671059 - 2⁷ = 99670931 is a prime.

It is not a weakly prime, because it can be changed into another prime (99671069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49835529 + 49835530.

It is an arithmetic number, because the mean of its divisors is an integer number (49835530).

Almost surely, 2^99671059 is an apocalyptic number.

99671059 is a deficient number, since it is larger than the sum of its proper divisors (1).

99671059 is an equidigital number, since it uses as much as digits as its factorization.

99671059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 99671059 is about 9983.5394024364. The cubic root of 99671059 is about 463.6493880150.

It can be divided in two parts, 9967 and 1059, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 99671059 in words is "ninety-nine million, six hundred seventy-one thousand, fifty-nine".