89138534 has 4 divisors (see below), whose sum is σ = 133707804. Its totient is φ = 44569266.

The previous prime is 89138503. The next prime is 89138537. The reversal of 89138534 is 43583198.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 89138491 and 89138500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89138537) 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 as a sum of consecutive naturals, namely, 22284632 + ... + 22284635.

It is an arithmetic number, because the mean of its divisors is an integer number (33426951).

Almost surely, 2^89138534 is an apocalyptic number.

89138534 is a deficient number, since it is larger than the sum of its proper divisors (44569270).

89138534 is a wasteful number, since it uses less digits than its factorization.

89138534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44569269.

The product of its digits is 103680, while the sum is 41.

The square root of 89138534 is about 9441.3205644126. The cubic root of 89138534 is about 446.7060445222.

The spelling of 89138534 in words is "eighty-nine million, one hundred thirty-eight thousand, five hundred thirty-four".