213484793 has 4 divisors (see below), whose sum is σ = 226042740. Its totient is φ = 200926848.

The previous prime is 213484757. The next prime is 213484819. The reversal of 213484793 is 397484312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 67848169 + 145636624 = 8237^2 + 12068^2 .

It is a cyclic number.

It is not a de Polignac number, because 213484793 - 2¹² = 213480697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213484793.

It is not an unprimeable number, because it can be changed into a prime (213484093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6278948 + ... + 6278981.

It is an arithmetic number, because the mean of its divisors is an integer number (56510685).

Almost surely, 2^213484793 is an apocalyptic number.

It is an amenable number.

213484793 is a deficient number, since it is larger than the sum of its proper divisors (12557947).

213484793 is a wasteful number, since it uses less digits than its factorization.

213484793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12557946.

The product of its digits is 145152, while the sum is 41.

The square root of 213484793 is about 14611.1188141087. The cubic root of 213484793 is about 597.6620061038.

The spelling of 213484793 in words is "two hundred thirteen million, four hundred eighty-four thousand, seven hundred ninety-three".