42987306 has 8 divisors (see below), whose sum is σ = 85974624. Its totient is φ = 14329100.

The previous prime is 42987289. The next prime is 42987323. The reversal of 42987306 is 60378924.

It is an interprime number because it is at equal distance from previous prime (42987289) and next prime (42987323).

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

42987306 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3582270 + ... + 3582281.

It is an arithmetic number, because the mean of its divisors is an integer number (10746828).

Almost surely, 2^42987306 is an apocalyptic number.

42987306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42987306 is a wasteful number, since it uses less digits than its factorization.

42987306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7164556.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 42987306 is about 6556.4705444317. The cubic root of 42987306 is about 350.3053281225.

The spelling of 42987306 in words is "forty-two million, nine hundred eighty-seven thousand, three hundred six".