89740387489 has 3 divisors (see below), whose sum is σ = 89740687057. Its totient is φ = 89740087922.

The previous prime is 89740387483. The next prime is 89740387501. The reversal of 89740387489 is 98478304798.

The square root of 89740387489 is 299567.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 89740387489 - 2³ = 89740387481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89740387481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 149784 + ... + 449350.

Almost surely, 2^89740387489 is an apocalyptic number.

89740387489 is the 299567-th square number.

89740387489 is the 149784-th centered octagonal number.

It is an amenable number.

89740387489 is a deficient number, since it is larger than the sum of its proper divisors (299568).

89740387489 is an frugal number, since it uses more digits than its factorization.

89740387489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599134 (or 299567 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 67.

The spelling of 89740387489 in words is "eighty-nine billion, seven hundred forty million, three hundred eighty-seven thousand, four hundred eighty-nine".