213023672 has 8 divisors (see below), whose sum is σ = 399419400. Its totient is φ = 106511832.

The previous prime is 213023669. The next prime is 213023717. The reversal of 213023672 is 276320312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13313972 + ... + 13313987.

It is an arithmetic number, because the mean of its divisors is an integer number (49927425).

Almost surely, 2^213023672 is an apocalyptic number.

It is an amenable number.

213023672 is a deficient number, since it is larger than the sum of its proper divisors (186395728).

213023672 is a wasteful number, since it uses less digits than its factorization.

213023672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26627965 (or 26627961 counting only the distinct ones).

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

The square root of 213023672 is about 14595.3304861521. The cubic root of 213023672 is about 597.2313850092.

Adding to 213023672 its reverse (276320312), we get a palindrome (489343984).

The spelling of 213023672 in words is "two hundred thirteen million, twenty-three thousand, six hundred seventy-two".