89756671 has 2 divisors, whose sum is σ = 89756672. Its totient is φ = 89756670.

The previous prime is 89756663. The next prime is 89756677. The reversal of 89756671 is 17665798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89756671 - 2³ = 89756663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89756677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44878335 + 44878336.

It is an arithmetic number, because the mean of its divisors is an integer number (44878336).

Almost surely, 2^89756671 is an apocalyptic number.

89756671 is a deficient number, since it is larger than the sum of its proper divisors (1).

89756671 is an equidigital number, since it uses as much as digits as its factorization.

89756671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 49.

The square root of 89756671 is about 9473.9997361199. Note that the first 3 decimals coincide. The cubic root of 89756671 is about 447.7362376360.

The spelling of 89756671 in words is "eighty-nine million, seven hundred fifty-six thousand, six hundred seventy-one".