89836669 has 4 divisors (see below), whose sum is σ = 96747196. Its totient is φ = 82926144.

The previous prime is 89836661. The next prime is 89836697. The reversal of 89836669 is 96663898.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96663898 = 2 ⋅48331949.

It can be written as a sum of positive squares in 2 ways, for example, as 21576025 + 68260644 = 4645^2 + 8262^2 .

It is a cyclic number.

It is not a de Polignac number, because 89836669 - 2³ = 89836661 is a prime.

It is a super-2 number, since 2×89836669² = 16141254194031122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89836661) 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, 3455244 + ... + 3455269.

It is an arithmetic number, because the mean of its divisors is an integer number (24186799).

Almost surely, 2^89836669 is an apocalyptic number.

It is an amenable number.

89836669 is a deficient number, since it is larger than the sum of its proper divisors (6910527).

89836669 is a wasteful number, since it uses less digits than its factorization.

89836669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910526.

The product of its digits is 3359232, while the sum is 55.

The square root of 89836669 is about 9478.2207718538. The cubic root of 89836669 is about 447.8692170464.

The spelling of 89836669 in words is "eighty-nine million, eight hundred thirty-six thousand, six hundred sixty-nine".