89747871 has 8 divisors (see below), whose sum is σ = 121178880. Its totient is φ = 59074392.

The previous prime is 89747869. The next prime is 89747873. The reversal of 89747871 is 17874798.

It is an interprime number because it is at equal distance from previous prime (89747869) and next prime (89747873).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89747871 - 2¹ = 89747869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89747873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189105 + ... + 189578.

It is an arithmetic number, because the mean of its divisors is an integer number (15147360).

Almost surely, 2^89747871 is an apocalyptic number.

89747871 is a deficient number, since it is larger than the sum of its proper divisors (31431009).

89747871 is a wasteful number, since it uses less digits than its factorization.

89747871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378765.

The product of its digits is 790272, while the sum is 51.

The square root of 89747871 is about 9473.5352957594. The cubic root of 89747871 is about 447.7216047119.

The spelling of 89747871 in words is "eighty-nine million, seven hundred forty-seven thousand, eight hundred seventy-one".