4297681 has 2 divisors, whose sum is σ = 4297682. Its totient is φ = 4297680.

The previous prime is 4297673. The next prime is 4297697. The reversal of 4297681 is 1867924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3549456 + 748225 = 1884^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 4297681 - 2³ = 4297673 is a prime.

It is a super-2 number, since 2×4297681² = 36940123955522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4297681.

It is not a weakly prime, because it can be changed into another prime (4297621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2148840 + 2148841.

It is an arithmetic number, because the mean of its divisors is an integer number (2148841).

Almost surely, 2^4297681 is an apocalyptic number.

It is an amenable number.

4297681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4297681 is an equidigital number, since it uses as much as digits as its factorization.

4297681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 4297681 is about 2073.0848993710. The cubic root of 4297681 is about 162.5840953284.

The spelling of 4297681 in words is "four million, two hundred ninety-seven thousand, six hundred eighty-one".