42987369 has 8 divisors (see below), whose sum is σ = 57369312. Its totient is φ = 28631840.

The previous prime is 42987361. The next prime is 42987389. The reversal of 42987369 is 96378924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42987369 - 2³ = 42987361 is a prime.

It is a super-2 number, since 2×42987369² = 3695827787084322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42987361) 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 7 ways as a sum of consecutive naturals, for example, 2427 + ... + 9584.

It is an arithmetic number, because the mean of its divisors is an integer number (7171164).

Almost surely, 2^42987369 is an apocalyptic number.

It is an amenable number.

42987369 is a deficient number, since it is larger than the sum of its proper divisors (14381943).

42987369 is a wasteful number, since it uses less digits than its factorization.

42987369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13207.

The product of its digits is 653184, while the sum is 48.

The square root of 42987369 is about 6556.4753488441. The cubic root of 42987369 is about 350.3054992523.

The spelling of 42987369 in words is "forty-two million, nine hundred eighty-seven thousand, three hundred sixty-nine".