4056040997 has 2 divisors, whose sum is σ = 4056040998. Its totient is φ = 4056040996.

The previous prime is 4056040991. The next prime is 4056041009. The reversal of 4056040997 is 7990406504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2921294401 + 1134746596 = 54049^2 + 33686^2 .

It is a cyclic number.

It is not a de Polignac number, because 4056040997 - 2²⁰ = 4054992421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4056040991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028020498 + 2028020499.

It is an arithmetic number, because the mean of its divisors is an integer number (2028020499).

Almost surely, 2^4056040997 is an apocalyptic number.

It is an amenable number.

4056040997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4056040997 is an equidigital number, since it uses as much as digits as its factorization.

4056040997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 4056040997 is about 63687.0551760717. The cubic root of 4056040997 is about 1594.7799930428.

The spelling of 4056040997 in words is "four billion, fifty-six million, forty thousand, nine hundred ninety-seven".