42336691 has 4 divisors (see below), whose sum is σ = 42353584. Its totient is φ = 42319800.

The previous prime is 42336683. The next prime is 42336727. The reversal of 42336691 is 19663324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42336691 - 2³ = 42336683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42336601) 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, 3855 + ... + 9976.

It is an arithmetic number, because the mean of its divisors is an integer number (10588396).

Almost surely, 2^42336691 is an apocalyptic number.

42336691 is a deficient number, since it is larger than the sum of its proper divisors (16893).

42336691 is a wasteful number, since it uses less digits than its factorization.

42336691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892.

The product of its digits is 23328, while the sum is 34.

The square root of 42336691 is about 6506.6651212430. The cubic root of 42336691 is about 348.5290402010.

The spelling of 42336691 in words is "forty-two million, three hundred thirty-six thousand, six hundred ninety-one".