10987389 has 24 divisors (see below), whose sum is σ = 19206720. Its totient is φ = 5908608.

The previous prime is 10987357. The next prime is 10987391. The reversal of 10987389 is 98378901.

It is not a de Polignac number, because 10987389 - 2⁵ = 10987357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10987349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4059 + ... + 6200.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 2^10987389 is an apocalyptic number.

It is an amenable number.

10987389 is a deficient number, since it is larger than the sum of its proper divisors (8219331).

10987389 is a wasteful number, since it uses less digits than its factorization.

10987389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10289 (or 10286 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 10987389 is about 3314.7230653555. The cubic root of 10987389 is about 222.3129868211.

The spelling of 10987389 in words is "ten million, nine hundred eighty-seven thousand, three hundred eighty-nine".