690348211 has 8 divisors (see below), whose sum is σ = 805071200. Its totient is φ = 591726744.

The previous prime is 690348199. The next prime is 690348221. The reversal of 690348211 is 112843096.

It is not a de Polignac number, because 690348211 - 2⁵ = 690348179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690348221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005996 + ... + 1006681.

It is an arithmetic number, because the mean of its divisors is an integer number (100633900).

Almost surely, 2^690348211 is an apocalyptic number.

690348211 is a deficient number, since it is larger than the sum of its proper divisors (114722989).

690348211 is an equidigital number, since it uses as much as digits as its factorization.

690348211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012698 (or 2012684 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 690348211 is about 26274.4783202255. The cubic root of 690348211 is about 883.8042139078.

The spelling of 690348211 in words is "six hundred ninety million, three hundred forty-eight thousand, two hundred eleven".