89540651 has 2 divisors, whose sum is σ = 89540652. Its totient is φ = 89540650.

The previous prime is 89540639. The next prime is 89540669. The reversal of 89540651 is 15604598.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89540651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89540621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44770325 + 44770326.

It is an arithmetic number, because the mean of its divisors is an integer number (44770326).

Almost surely, 2^89540651 is an apocalyptic number.

89540651 is a deficient number, since it is larger than the sum of its proper divisors (1).

89540651 is an equidigital number, since it uses as much as digits as its factorization.

89540651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 89540651 is about 9462.5921924175. The cubic root of 89540651 is about 447.3767557991.

The spelling of 89540651 in words is "eighty-nine million, five hundred forty thousand, six hundred fifty-one".