2973403421 has 2 divisors, whose sum is σ = 2973403422. Its totient is φ = 2973403420.

The previous prime is 2973403399. The next prime is 2973403427. The reversal of 2973403421 is 1243043792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2773180921 + 200222500 = 52661^2 + 14150^2 .

It is a cyclic number.

It is not a de Polignac number, because 2973403421 - 2²⁶ = 2906294557 is a prime.

It is a super-2 number, since 2×2973403421² = 17682255808029006482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2973403427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486701710 + 1486701711.

It is an arithmetic number, because the mean of its divisors is an integer number (1486701711).

Almost surely, 2^2973403421 is an apocalyptic number.

It is an amenable number.

2973403421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2973403421 is an equidigital number, since it uses as much as digits as its factorization.

2973403421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 2973403421 is about 54528.9227933213. The cubic root of 2973403421 is about 1437.9748121333.

The spelling of 2973403421 in words is "two billion, nine hundred seventy-three million, four hundred three thousand, four hundred twenty-one".