213689948 has 18 divisors (see below), whose sum is σ = 384347376. Its totient is φ = 103954608.

The previous prime is 213689947. The next prime is 213689963. The reversal of 213689948 is 849986312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213689896 and 213689905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213689947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14036 + ... + 24987.

It is an arithmetic number, because the mean of its divisors is an integer number (21352632).

Almost surely, 2^213689948 is an apocalyptic number.

It is an amenable number.

213689948 is a deficient number, since it is larger than the sum of its proper divisors (170657428).

213689948 is a wasteful number, since it uses less digits than its factorization.

213689948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39101 (or 39062 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 213689948 is about 14618.1376378799. The cubic root of 213689948 is about 597.8533922469.

The spelling of 213689948 in words is "two hundred thirteen million, six hundred eighty-nine thousand, nine hundred forty-eight".