89851117 has 4 divisors (see below), whose sum is σ = 89870076. Its totient is φ = 89832160.

The previous prime is 89851093. The next prime is 89851141. The reversal of 89851117 is 71115898.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (89851093) and next prime (89851141).

It can be written as a sum of positive squares in 2 ways, for example, as 31573161 + 58277956 = 5619^2 + 7634^2 .

It is a cyclic number.

It is not a de Polignac number, because 89851117 - 2¹⁹ = 89326829 is a prime.

It is a super-2 number, since 2×89851117² = 16146446452295378, which contains 22 as substring.

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 89851117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89851147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4713 + ... + 14209.

It is an arithmetic number, because the mean of its divisors is an integer number (22467519).

Almost surely, 2^89851117 is an apocalyptic number.

It is an amenable number.

89851117 is a deficient number, since it is larger than the sum of its proper divisors (18959).

89851117 is an equidigital number, since it uses as much as digits as its factorization.

89851117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18958.

The product of its digits is 20160, while the sum is 40.

The square root of 89851117 is about 9478.9829095742. The cubic root of 89851117 is about 447.8932253111.

The spelling of 89851117 in words is "eighty-nine million, eight hundred fifty-one thousand, one hundred seventeen".