89138361 has 32 divisors (see below), whose sum is σ = 139926528. Its totient is φ = 49950720.

The previous prime is 89138359. The next prime is 89138369. The reversal of 89138361 is 16383198.

It is not a de Polignac number, because 89138361 - 2¹ = 89138359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89138369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18385 + ... + 22721.

It is an arithmetic number, because the mean of its divisors is an integer number (4372704).

Almost surely, 2^89138361 is an apocalyptic number.

It is an amenable number.

89138361 is a deficient number, since it is larger than the sum of its proper divisors (50788167).

89138361 is a wasteful number, since it uses less digits than its factorization.

89138361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401.

The product of its digits is 31104, while the sum is 39.

The square root of 89138361 is about 9441.3114025542. The cubic root of 89138361 is about 446.7057555331.

The spelling of 89138361 in words is "eighty-nine million, one hundred thirty-eight thousand, three hundred sixty-one".