210812712 has 32 divisors (see below), whose sum is σ = 574944480. Its totient is φ = 63882560.

The previous prime is 210812689. The next prime is 210812737. The reversal of 210812712 is 217218012.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 399003 + ... + 399530.

It is an arithmetic number, because the mean of its divisors is an integer number (17967015).

Almost surely, 2^210812712 is an apocalyptic number.

210812712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210812712 is an abundant number, since it is smaller than the sum of its proper divisors (364131768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210812712 is a wasteful number, since it uses less digits than its factorization.

210812712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798553 (or 798549 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 210812712 is about 14519.3908963152. The cubic root of 210812712 is about 595.1579854940.

The spelling of 210812712 in words is "two hundred ten million, eight hundred twelve thousand, seven hundred twelve".