89278671 has 4 divisors (see below), whose sum is σ = 119038232. Its totient is φ = 59519112.

The previous prime is 89278661. The next prime is 89278681. The reversal of 89278671 is 17687298.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (89278661) and next prime (89278681).

It is not a de Polignac number, because 89278671 - 2⁹ = 89278159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89278671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89278601) 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 in 3 ways as a sum of consecutive naturals, for example, 14879776 + ... + 14879781.

It is an arithmetic number, because the mean of its divisors is an integer number (29759558).

Almost surely, 2^89278671 is an apocalyptic number.

89278671 is a deficient number, since it is larger than the sum of its proper divisors (29759561).

89278671 is a wasteful number, since it uses less digits than its factorization.

89278671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29759560.

The product of its digits is 338688, while the sum is 48.

The square root of 89278671 is about 9448.7391222321. The cubic root of 89278671 is about 446.9400146723.

The spelling of 89278671 in words is "eighty-nine million, two hundred seventy-eight thousand, six hundred seventy-one".