213622006 has 8 divisors (see below), whose sum is σ = 345081744. Its totient is φ = 98594760.

The previous prime is 213621973. The next prime is 213622007. The reversal of 213622006 is 600226312.

It is a happy number.

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

It is a super-2 number, since 2×213622006² = 91268722894928072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213622007) 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, 4108090 + ... + 4108141.

It is an arithmetic number, because the mean of its divisors is an integer number (43135218).

Almost surely, 2^213622006 is an apocalyptic number.

213622006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

213622006 is a deficient number, since it is larger than the sum of its proper divisors (131459738).

213622006 is a wasteful number, since it uses less digits than its factorization.

213622006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8216246.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 213622006 is about 14615.8135592926. The cubic root of 213622006 is about 597.7900237057.

Adding to 213622006 its reverse (600226312), we get a palindrome (813848318).

It can be divided in two parts, 2136 and 22006, that added together give a palindrome (24142).

The spelling of 213622006 in words is "two hundred thirteen million, six hundred twenty-two thousand, six".