213720716 has 12 divisors (see below), whose sum is σ = 408012360. Its totient is φ = 97145760.

The previous prime is 213720679. The next prime is 213720737. The reversal of 213720716 is 617027312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2428601 + ... + 2428688.

It is an arithmetic number, because the mean of its divisors is an integer number (34001030).

Almost surely, 2^213720716 is an apocalyptic number.

It is an amenable number.

213720716 is a deficient number, since it is larger than the sum of its proper divisors (194291644).

213720716 is a wasteful number, since it uses less digits than its factorization.

213720716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857304 (or 4857302 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 213720716 is about 14619.1899912410. The cubic root of 213720716 is about 597.8820847062.

The spelling of 213720716 in words is "two hundred thirteen million, seven hundred twenty thousand, seven hundred sixteen".