89677487 has 2 divisors, whose sum is σ = 89677488. Its totient is φ = 89677486.

The previous prime is 89677481. The next prime is 89677519. The reversal of 89677487 is 78477698.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89677487 - 2¹⁰ = 89676463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89677481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44838743 + 44838744.

It is an arithmetic number, because the mean of its divisors is an integer number (44838744).

Almost surely, 2^89677487 is an apocalyptic number.

89677487 is a deficient number, since it is larger than the sum of its proper divisors (1).

89677487 is an equidigital number, since it uses as much as digits as its factorization.

89677487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 56.

The square root of 89677487 is about 9469.8197976519. The cubic root of 89677487 is about 447.6045334898.

The spelling of 89677487 in words is "eighty-nine million, six hundred seventy-seven thousand, four hundred eighty-seven".