89837261 has 2 divisors, whose sum is σ = 89837262. Its totient is φ = 89837260.

The previous prime is 89837243. The next prime is 89837269. The reversal of 89837261 is 16273898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59521225 + 30316036 = 7715^2 + 5506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89837261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89837269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44918630 + 44918631.

It is an arithmetic number, because the mean of its divisors is an integer number (44918631).

Almost surely, 2^89837261 is an apocalyptic number.

It is an amenable number.

89837261 is a deficient number, since it is larger than the sum of its proper divisors (1).

89837261 is an equidigital number, since it uses as much as digits as its factorization.

89837261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 89837261 is about 9478.2520012922. The cubic root of 89837261 is about 447.8702008243.

The spelling of 89837261 in words is "eighty-nine million, eight hundred thirty-seven thousand, two hundred sixty-one".