690348212 has 12 divisors (see below), whose sum is σ = 1210634880. Its totient is φ = 344452536.

The previous prime is 690348199. The next prime is 690348221. The reversal of 690348212 is 212843096.

It is a congruent number.

It is an unprimeable number.

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, 178238 + ... + 182069.

It is an arithmetic number, because the mean of its divisors is an integer number (100886240).

Almost surely, 2^690348212 is an apocalyptic number.

It is an amenable number.

690348212 is a deficient number, since it is larger than the sum of its proper divisors (520286668).

690348212 is a wasteful number, since it uses less digits than its factorization.

690348212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360790 (or 360788 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 690348212 is about 26274.4783392554. The cubic root of 690348212 is about 883.8042143345.

The spelling of 690348212 in words is "six hundred ninety million, three hundred forty-eight thousand, two hundred twelve".