3210836985 has 12 divisors (see below), whose sum is σ = 5565450852. Its totient is φ = 1712446368.

The previous prime is 3210836983. The next prime is 3210837013. The reversal of 3210836985 is 5896380123.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1737889344 + 1472947641 = 41688^2 + 38379^2 .

It is not a de Polignac number, because 3210836985 - 2¹ = 3210836983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 71351933 = 3210836985 / (3 + 2 + 1 + 0 + 8 + 3 + 6 + 9 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3210836985.

It is not an unprimeable number, because it can be changed into a prime (3210836983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35675922 + ... + 35676011.

It is an arithmetic number, because the mean of its divisors is an integer number (463787571).

Almost surely, 2^3210836985 is an apocalyptic number.

It is an amenable number.

3210836985 is a deficient number, since it is larger than the sum of its proper divisors (2354613867).

3210836985 is a wasteful number, since it uses less digits than its factorization.

3210836985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71351944 (or 71351941 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 3210836985 is about 56664.2478552394. The cubic root of 3210836985 is about 1475.2742165650.

The spelling of 3210836985 in words is "three billion, two hundred ten million, eight hundred thirty-six thousand, nine hundred eighty-five".