690404213 has 8 divisors (see below), whose sum is σ = 702002880. Its totient is φ = 678857760.

The previous prime is 690404171. The next prime is 690404227. The reversal of 690404213 is 312404096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690404213 - 2¹⁴ = 690387829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690404263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14081 + ... + 39737.

It is an arithmetic number, because the mean of its divisors is an integer number (87750360).

Almost surely, 2^690404213 is an apocalyptic number.

It is an amenable number.

690404213 is a deficient number, since it is larger than the sum of its proper divisors (11598667).

690404213 is a wasteful number, since it uses less digits than its factorization.

690404213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26107.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 690404213 is about 26275.5440095919. The cubic root of 690404213 is about 883.8281117343.

The spelling of 690404213 in words is "six hundred ninety million, four hundred four thousand, two hundred thirteen".