213652623 has 4 divisors (see below), whose sum is σ = 284870168. Its totient is φ = 142435080.

The previous prime is 213652613. The next prime is 213652633. The reversal of 213652623 is 326256312.

213652623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (213652613) and next prime (213652633).

It is not a de Polignac number, because 213652623 - 2⁹ = 213652111 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 (213652613) 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, 35608768 + ... + 35608773.

It is an arithmetic number, because the mean of its divisors is an integer number (71217542).

Almost surely, 2^213652623 is an apocalyptic number.

213652623 is a deficient number, since it is larger than the sum of its proper divisors (71217545).

213652623 is an equidigital number, since it uses as much as digits as its factorization.

213652623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71217544.

The product of its digits is 12960, while the sum is 30.

The square root of 213652623 is about 14616.8609147108. The cubic root of 213652623 is about 597.8185814109.

The spelling of 213652623 in words is "two hundred thirteen million, six hundred fifty-two thousand, six hundred twenty-three".