210985070 has 16 divisors (see below), whose sum is σ = 392024448. Its totient is φ = 81671520.

The previous prime is 210985051. The next prime is 210985109. The reversal of 210985070 is 70589012.

It is an alternating number because its digits alternate between even and odd.

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 7 ways as a sum of consecutive naturals, for example, 339989 + ... + 340608.

It is an arithmetic number, because the mean of its divisors is an integer number (24501528).

Almost surely, 2^210985070 is an apocalyptic number.

210985070 is a deficient number, since it is larger than the sum of its proper divisors (181039378).

210985070 is a wasteful number, since it uses less digits than its factorization.

210985070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680635.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 210985070 is about 14525.3251254490. The cubic root of 210985070 is about 595.3201393724.

The spelling of 210985070 in words is "two hundred ten million, nine hundred eighty-five thousand, seventy".