213688752 has 20 divisors (see below), whose sum is σ = 552029400. Its totient is φ = 71229568.

The previous prime is 213688751. The next prime is 213688753. The reversal of 213688752 is 257886312.

It is an interprime number because it is at equal distance from previous prime (213688751) and next prime (213688753).

It is not an unprimeable number, because it can be changed into a prime (213688751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2225877 + ... + 2225972.

It is an arithmetic number, because the mean of its divisors is an integer number (27601470).

Almost surely, 2^213688752 is an apocalyptic number.

It is an amenable number.

213688752 is an abundant number, since it is smaller than the sum of its proper divisors (338340648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213688752 is a wasteful number, since it uses less digits than its factorization.

213688752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451860 (or 4451854 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 213688752 is about 14618.0967297388. The cubic root of 213688752 is about 597.8522768708.

The spelling of 213688752 in words is "two hundred thirteen million, six hundred eighty-eight thousand, seven hundred fifty-two".