3621981674 has 8 divisors (see below), whose sum is σ = 5433597408. Its totient is φ = 1810782540.

The previous prime is 3621981661. The next prime is 3621981677. The reversal of 3621981674 is 4761891263.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3621981677) 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, 81422 + ... + 117785.

It is an arithmetic number, because the mean of its divisors is an integer number (679199676).

Almost surely, 2^3621981674 is an apocalyptic number.

3621981674 is a deficient number, since it is larger than the sum of its proper divisors (1811615734).

3621981674 is a wasteful number, since it uses less digits than its factorization.

3621981674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208300.

The product of its digits is 435456, while the sum is 47.

The square root of 3621981674 is about 60182.9018409714. The cubic root of 3621981674 is about 1535.7319379596.

The spelling of 3621981674 in words is "three billion, six hundred twenty-one million, nine hundred eighty-one thousand, six hundred seventy-four".