216433007 has 4 divisors (see below), whose sum is σ = 247352016. Its totient is φ = 185514000.

The previous prime is 216432991. The next prime is 216433031. The reversal of 216433007 is 700334612.

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

It is not a de Polignac number, because 216433007 - 2⁴ = 216432991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216433057) 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, 15459494 + ... + 15459507.

It is an arithmetic number, because the mean of its divisors is an integer number (61838004).

Almost surely, 2^216433007 is an apocalyptic number.

216433007 is a deficient number, since it is larger than the sum of its proper divisors (30919009).

216433007 is an equidigital number, since it uses as much as digits as its factorization.

216433007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30919008.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 216433007 is about 14711.6622786142. The cubic root of 216433007 is about 600.4006647941.

Adding to 216433007 its reverse (700334612), we get a palindrome (916767619).

The spelling of 216433007 in words is "two hundred sixteen million, four hundred thirty-three thousand, seven".