2973863421 has 12 divisors (see below), whose sum is σ = 4312298172. Its totient is φ = 1974859776.

The previous prime is 2973863411. The next prime is 2973863441. The reversal of 2973863421 is 1243683792.

2973863421 is a `hidden beast` number, since 2 + 9 + 7 + 3 + 8 + 634 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1570536900 + 1403326521 = 39630^2 + 37461^2 .

It is not a de Polignac number, because 2973863421 - 2⁷ = 2973863293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2973863401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 640546 + ... + 645171.

It is an arithmetic number, because the mean of its divisors is an integer number (359358181).

Almost surely, 2^2973863421 is an apocalyptic number.

It is an amenable number.

2973863421 is a deficient number, since it is larger than the sum of its proper divisors (1338434751).

2973863421 is a wasteful number, since it uses less digits than its factorization.

2973863421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285980 (or 1285977 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 2973863421 is about 54533.1405752502. The cubic root of 2973863421 is about 1438.0489622135.

The spelling of 2973863421 in words is "two billion, nine hundred seventy-three million, eight hundred sixty-three thousand, four hundred twenty-one".