213572727 has 16 divisors (see below), whose sum is σ = 317414880. Its totient is φ = 141926976.

The previous prime is 213572707. The next prime is 213572741. The reversal of 213572727 is 727275312.

213572727 is a `hidden beast` number, since 2 + 13 + 572 + 72 + 7 = 666.

It is not a de Polignac number, because 213572727 - 2¹⁶ = 213507191 is a prime.

It is a super-2 number, since 2×213572727² = 91226619436433058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213572691 and 213572700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213572707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3918 + ... + 21035.

It is an arithmetic number, because the mean of its divisors is an integer number (19838430).

Almost surely, 2^213572727 is an apocalyptic number.

213572727 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

213572727 is a deficient number, since it is larger than the sum of its proper divisors (103842153).

213572727 is a wasteful number, since it uses less digits than its factorization.

213572727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25279 (or 25273 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 213572727 is about 14614.1276510095. The cubic root of 213572727 is about 597.7440534728.

The spelling of 213572727 in words is "two hundred thirteen million, five hundred seventy-two thousand, seven hundred twenty-seven".