4128697 has 2 divisors, whose sum is σ = 4128698. Its totient is φ = 4128696.

The previous prime is 4128689. The next prime is 4128713. The reversal of 4128697 is 7968214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3644281 + 484416 = 1909^2 + 696^2 .

It is a cyclic number.

It is not a de Polignac number, because 4128697 - 2³ = 4128689 is a prime.

It is a super-2 number, since 2×4128697² = 34092277835618, which contains 22 as substring.

4128697 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4128617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2064348 + 2064349.

It is an arithmetic number, because the mean of its divisors is an integer number (2064349).

Almost surely, 2^4128697 is an apocalyptic number.

It is an amenable number.

4128697 is a deficient number, since it is larger than the sum of its proper divisors (1).

4128697 is an equidigital number, since it uses as much as digits as its factorization.

4128697 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 4128697 is about 2031.9195358084. The cubic root of 4128697 is about 160.4246143323.

The spelling of 4128697 in words is "four million, one hundred twenty-eight thousand, six hundred ninety-seven".