89138833 has 4 divisors (see below), whose sum is σ = 101872960. Its totient is φ = 76404708.

The previous prime is 89138831. The next prime is 89138839. The reversal of 89138833 is 33883198.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33883198 = 2 ⋅16941599.

It is a cyclic number.

It is not a de Polignac number, because 89138833 - 2¹ = 89138831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89138833.

It is not an unprimeable number, because it can be changed into a prime (89138831) 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, 6367053 + ... + 6367066.

It is an arithmetic number, because the mean of its divisors is an integer number (25468240).

Almost surely, 2^89138833 is an apocalyptic number.

It is an amenable number.

89138833 is a deficient number, since it is larger than the sum of its proper divisors (12734127).

89138833 is a wasteful number, since it uses less digits than its factorization.

89138833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12734126.

The product of its digits is 124416, while the sum is 43.

The square root of 89138833 is about 9441.3363990486. The cubic root of 89138833 is about 446.7065439881.

The spelling of 89138833 in words is "eighty-nine million, one hundred thirty-eight thousand, eight hundred thirty-three".