89138517 has 16 divisors (see below), whose sum is σ = 128240448. Its totient is φ = 54748800.

The previous prime is 89138503. The next prime is 89138537. The reversal of 89138517 is 71583198.

It is not a de Polignac number, because 89138517 - 2⁷ = 89138389 is a prime.

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 in 15 ways as a sum of consecutive naturals, for example, 21538 + ... + 25340.

It is an arithmetic number, because the mean of its divisors is an integer number (8015028).

Almost surely, 2^89138517 is an apocalyptic number.

It is an amenable number.

89138517 is a deficient number, since it is larger than the sum of its proper divisors (39101931).

89138517 is a wasteful number, since it uses less digits than its factorization.

89138517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420.

The product of its digits is 60480, while the sum is 42.

The square root of 89138517 is about 9441.3196641148. The cubic root of 89138517 is about 446.7060161245.

The spelling of 89138517 in words is "eighty-nine million, one hundred thirty-eight thousand, five hundred seventeen".