213387047 has 4 divisors (see below), whose sum is σ = 213488856. Its totient is φ = 213285240.

The previous prime is 213387007. The next prime is 213387059. The reversal of 213387047 is 740783312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213387047 - 2⁶ = 213386983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213386998 and 213387016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213387007) 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, 47693 + ... + 51974.

It is an arithmetic number, because the mean of its divisors is an integer number (53372214).

Almost surely, 2^213387047 is an apocalyptic number.

213387047 is a deficient number, since it is larger than the sum of its proper divisors (101809).

213387047 is an equidigital number, since it uses as much as digits as its factorization.

213387047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101808.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 213387047 is about 14607.7735127568. The cubic root of 213387047 is about 597.5707771412.

The spelling of 213387047 in words is "two hundred thirteen million, three hundred eighty-seven thousand, forty-seven".