4057397 has 2 divisors, whose sum is σ = 4057398. Its totient is φ = 4057396.

The previous prime is 4057381. The next prime is 4057409. The reversal of 4057397 is 7937504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4036081 + 21316 = 2009^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 4057397 - 2⁴ = 4057381 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4057357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028698 + 2028699.

It is an arithmetic number, because the mean of its divisors is an integer number (2028699).

Almost surely, 2^4057397 is an apocalyptic number.

It is an amenable number.

4057397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4057397 is an equidigital number, since it uses as much as digits as its factorization.

4057397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 4057397 is about 2014.2981407925. The cubic root of 4057397 is about 159.4957693869.

The spelling of 4057397 in words is "four million, fifty-seven thousand, three hundred ninety-seven".