213724654 has 64 divisors (see below), whose sum is σ = 407554560. Its totient is φ = 82581120.

The previous prime is 213724649. The next prime is 213724661. The reversal of 213724654 is 456427312.

213724654 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200527 + ... + 201589.

It is an arithmetic number, because the mean of its divisors is an integer number (6368040).

Almost surely, 2^213724654 is an apocalyptic number.

213724654 is a deficient number, since it is larger than the sum of its proper divisors (193829906).

213724654 is a wasteful number, since it uses less digits than its factorization.

213724654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145.

The product of its digits is 40320, while the sum is 34.

The square root of 213724654 is about 14619.3246766053. The cubic root of 213724654 is about 597.8857568587.

The spelling of 213724654 in words is "two hundred thirteen million, seven hundred twenty-four thousand, six hundred fifty-four".