89779871 has 8 divisors (see below), whose sum is σ = 92349120. Its totient is φ = 87218208.

The previous prime is 89779849. The next prime is 89779891. The reversal of 89779871 is 17897798.

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

It is a cyclic number.

It is not a de Polignac number, because 89779871 - 2¹⁰ = 89778847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89779891) 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, 29210 + ... + 32136.

It is an arithmetic number, because the mean of its divisors is an integer number (11543640).

Almost surely, 2^89779871 is an apocalyptic number.

89779871 is a deficient number, since it is larger than the sum of its proper divisors (2569249).

89779871 is a wasteful number, since it uses less digits than its factorization.

89779871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793.

The product of its digits is 1778112, while the sum is 56.

The square root of 89779871 is about 9475.2240606753. The cubic root of 89779871 is about 447.7748107610.

The spelling of 89779871 in words is "eighty-nine million, seven hundred seventy-nine thousand, eight hundred seventy-one".