213718084 has 24 divisors (see below), whose sum is σ = 405222048. Its totient is φ = 98232960.

The previous prime is 213718051. The next prime is 213718091. The reversal of 213718084 is 480817312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33622 + ... + 39469.

It is an arithmetic number, because the mean of its divisors is an integer number (16884252).

Almost surely, 2^213718084 is an apocalyptic number.

It is an amenable number.

213718084 is a deficient number, since it is larger than the sum of its proper divisors (191503964).

213718084 is a wasteful number, since it uses less digits than its factorization.

213718084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73155 (or 73153 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 213718084 is about 14619.0999722965. The cubic root of 213718084 is about 597.8796303628.

213718084 divided by its sum of digits (34) gives a palindrome (6285826).

The spelling of 213718084 in words is "two hundred thirteen million, seven hundred eighteen thousand, eighty-four".