7210346906 has 32 divisors (see below), whose sum is σ = 12704010240. Its totient is φ = 3005464176.

The previous prime is 7210346903. The next prime is 7210346921. The reversal of 7210346906 is 6096430127.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7210346906.

It is not an unprimeable number, because it can be changed into a prime (7210346903) 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 15 ways as a sum of consecutive naturals, for example, 25451 + ... + 122753.

It is an arithmetic number, because the mean of its divisors is an integer number (397000320).

Almost surely, 2^7210346906 is an apocalyptic number.

7210346906 is a deficient number, since it is larger than the sum of its proper divisors (5493663334).

7210346906 is a wasteful number, since it uses less digits than its factorization.

7210346906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97458.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 7210346906 is about 84913.7615819721. The cubic root of 7210346906 is about 1931.9033105411.

The spelling of 7210346906 in words is "seven billion, two hundred ten million, three hundred forty-six thousand, nine hundred six".