210747968 has 28 divisors (see below), whose sum is σ = 418665660. Its totient is φ = 105257472.

The previous prime is 210747937. The next prime is 210747973. The reversal of 210747968 is 869747012.

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 133448704 = 8792^2 + 11552^2 .

It is a super-2 number, since 2×210747968² = 88829412032258048, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105830 + ... + 107802.

It is an arithmetic number, because the mean of its divisors is an integer number (14952345).

Almost surely, 2^210747968 is an apocalyptic number.

It is an amenable number.

210747968 is a deficient number, since it is larger than the sum of its proper divisors (207917692).

210747968 is a wasteful number, since it uses less digits than its factorization.

210747968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654 (or 3644 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 210747968 is about 14517.1611549917. The cubic root of 210747968 is about 595.0970517017.

The spelling of 210747968 in words is "two hundred ten million, seven hundred forty-seven thousand, nine hundred sixty-eight".