89083691 has 2 divisors, whose sum is σ = 89083692. Its totient is φ = 89083690.

The previous prime is 89083681. The next prime is 89083699. The reversal of 89083691 is 19638098.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89083691 - 2⁶ = 89083627 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 (89083699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44541845 + 44541846.

It is an arithmetic number, because the mean of its divisors is an integer number (44541846).

Almost surely, 2^89083691 is an apocalyptic number.

89083691 is a deficient number, since it is larger than the sum of its proper divisors (1).

89083691 is an equidigital number, since it uses as much as digits as its factorization.

89083691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 89083691 is about 9438.4157039198. The cubic root of 89083691 is about 446.6144128992.

The spelling of 89083691 in words is "eighty-nine million, eighty-three thousand, six hundred ninety-one".