690340201 has 4 divisors (see below), whose sum is σ = 691351632. Its totient is φ = 689328772.

The previous prime is 690340177. The next prime is 690340207. The reversal of 690340201 is 102043096.

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 690340201 - 2⁵ = 690340169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690340207) 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, 504691 + ... + 506056.

It is an arithmetic number, because the mean of its divisors is an integer number (172837908).

Almost surely, 2^690340201 is an apocalyptic number.

It is an amenable number.

690340201 is a deficient number, since it is larger than the sum of its proper divisors (1011431).

690340201 is a wasteful number, since it uses less digits than its factorization.

690340201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011430.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 690340201 is about 26274.3258904962. The cubic root of 690340201 is about 883.8007956815.

Adding to 690340201 its reverse (102043096), we get a palindrome (792383297).

The spelling of 690340201 in words is "six hundred ninety million, three hundred forty thousand, two hundred one".