89474387 has 2 divisors, whose sum is σ = 89474388. Its totient is φ = 89474386.

The previous prime is 89474381. The next prime is 89474419. The reversal of 89474387 is 78347498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89474387 - 2⁸ = 89474131 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (89474381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44737193 + 44737194.

It is an arithmetic number, because the mean of its divisors is an integer number (44737194).

Almost surely, 2^89474387 is an apocalyptic number.

89474387 is a deficient number, since it is larger than the sum of its proper divisors (1).

89474387 is an equidigital number, since it uses as much as digits as its factorization.

89474387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The square root of 89474387 is about 9459.0901782360. The cubic root of 89474387 is about 447.2663691055.

The spelling of 89474387 in words is "eighty-nine million, four hundred seventy-four thousand, three hundred eighty-seven".