89278091 has 8 divisors (see below), whose sum is σ = 102236640. Its totient is φ = 76370688.

The previous prime is 89278061. The next prime is 89278099. The reversal of 89278091 is 19087298.

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 89278091 - 2¹⁴ = 89261707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89278099) 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, 8966 + ... + 16091.

It is an arithmetic number, because the mean of its divisors is an integer number (12779580).

Almost surely, 2^89278091 is an apocalyptic number.

89278091 is a deficient number, since it is larger than the sum of its proper divisors (12958549).

89278091 is a wasteful number, since it uses less digits than its factorization.

89278091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25573.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 89278091 is about 9448.7084302565. The cubic root of 89278091 is about 446.9390468198.

The spelling of 89278091 in words is "eighty-nine million, two hundred seventy-eight thousand, ninety-one".