2974806985 has 4 divisors (see below), whose sum is σ = 3569768388. Its totient is φ = 2379845584.

The previous prime is 2974806983. The next prime is 2974806997. The reversal of 2974806985 is 5896084792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2255870016 + 718936969 = 47496^2 + 26813^2 .

It is a cyclic number.

It is not a de Polignac number, because 2974806985 - 2¹ = 2974806983 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2974806983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297480694 + ... + 297480703.

It is an arithmetic number, because the mean of its divisors is an integer number (892442097).

Almost surely, 2^2974806985 is an apocalyptic number.

It is an amenable number.

2974806985 is a deficient number, since it is larger than the sum of its proper divisors (594961403).

2974806985 is an equidigital number, since it uses as much as digits as its factorization.

2974806985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594961402.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The square root of 2974806985 is about 54541.7911788749. The cubic root of 2974806985 is about 1438.2010368671.

The spelling of 2974806985 in words is "two billion, nine hundred seventy-four million, eight hundred six thousand, nine hundred eighty-five".