213650693 has 2 divisors, whose sum is σ = 213650694. Its totient is φ = 213650692.

The previous prime is 213650683. The next prime is 213650753. The reversal of 213650693 is 396056312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175483009 + 38167684 = 13247^2 + 6178^2 .

It is a cyclic number.

It is not a de Polignac number, because 213650693 - 2⁴ = 213650677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213650683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106825346 + 106825347.

It is an arithmetic number, because the mean of its divisors is an integer number (106825347).

Almost surely, 2^213650693 is an apocalyptic number.

It is an amenable number.

213650693 is a deficient number, since it is larger than the sum of its proper divisors (1).

213650693 is an equidigital number, since it uses as much as digits as its factorization.

213650693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 213650693 is about 14616.7948949145. The cubic root of 213650693 is about 597.8167813030.

The spelling of 213650693 in words is "two hundred thirteen million, six hundred fifty thousand, six hundred ninety-three".