2921395894 has 8 divisors (see below), whose sum is σ = 4382348760. Its totient is φ = 1460612976.

The previous prime is 2921395871. The next prime is 2921395909. The reversal of 2921395894 is 4985931292.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17337 + ... + 78379.

It is an arithmetic number, because the mean of its divisors is an integer number (547793595).

Almost surely, 2^2921395894 is an apocalyptic number.

2921395894 is a deficient number, since it is larger than the sum of its proper divisors (1460952866).

2921395894 is a wasteful number, since it uses less digits than its factorization.

2921395894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84974.

The product of its digits is 1399680, while the sum is 52.

The square root of 2921395894 is about 54049.9388898822. The cubic root of 2921395894 is about 1429.5416226915.

The spelling of 2921395894 in words is "two billion, nine hundred twenty-one million, three hundred ninety-five thousand, eight hundred ninety-four".