213790361 has 4 divisors (see below), whose sum is σ = 213910224. Its totient is φ = 213670500.

The previous prime is 213790331. The next prime is 213790363. The reversal of 213790361 is 163097312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213790361 - 2¹⁴ = 213773977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213790363) 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, 57215 + ... + 60836.

It is an arithmetic number, because the mean of its divisors is an integer number (53477556).

Almost surely, 2^213790361 is an apocalyptic number.

It is an amenable number.

213790361 is a deficient number, since it is larger than the sum of its proper divisors (119863).

213790361 is a wasteful number, since it uses less digits than its factorization.

213790361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119862.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 213790361 is about 14621.5717691362. The cubic root of 213790361 is about 597.9470214398.

The spelling of 213790361 in words is "two hundred thirteen million, seven hundred ninety thousand, three hundred sixty-one".