213917046 has 36 divisors (see below), whose sum is σ = 498268692. Its totient is φ = 61047504.

The previous prime is 213917003. The next prime is 213917047. The reversal of 213917046 is 640719312.

It is a super-2 number, since 2×213917046² = 91521005138732232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213916998 and 213917016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213917047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 250356 + ... + 251208.

It is an arithmetic number, because the mean of its divisors is an integer number (13840797).

Almost surely, 2^213917046 is an apocalyptic number.

213917046 is an abundant number, since it is smaller than the sum of its proper divisors (284351646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213917046 is an frugal number, since it uses more digits than its factorization.

213917046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 213917046 is about 14625.9032541584. The cubic root of 213917046 is about 598.0651059043.

The spelling of 213917046 in words is "two hundred thirteen million, nine hundred seventeen thousand, forty-six".