42964387 has 4 divisors (see below), whose sum is σ = 43508320. Its totient is φ = 42420456.

The previous prime is 42964381. The next prime is 42964403. The reversal of 42964387 is 78346924.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42964387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42964381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271848 + ... + 272005.

It is an arithmetic number, because the mean of its divisors is an integer number (10877080).

Almost surely, 2^42964387 is an apocalyptic number.

42964387 is a deficient number, since it is larger than the sum of its proper divisors (543933).

42964387 is an equidigital number, since it uses as much as digits as its factorization.

42964387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543932.

The product of its digits is 290304, while the sum is 43.

The square root of 42964387 is about 6554.7224960329. The cubic root of 42964387 is about 350.2430610966.

The spelling of 42964387 in words is "forty-two million, nine hundred sixty-four thousand, three hundred eighty-seven".