4072417 has 2 divisors, whose sum is σ = 4072418. Its totient is φ = 4072416.

The previous prime is 4072399. The next prime is 4072427. The reversal of 4072417 is 7142704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3936256 + 136161 = 1984^2 + 369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4072417 is a prime.

It is an Ulam number.

4072417 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4072391 and 4072400.

It is not a weakly prime, because it can be changed into another prime (4072427) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036208 + 2036209.

It is an arithmetic number, because the mean of its divisors is an integer number (2036209).

Almost surely, 2^4072417 is an apocalyptic number.

It is an amenable number.

4072417 is a deficient number, since it is larger than the sum of its proper divisors (1).

4072417 is an equidigital number, since it uses as much as digits as its factorization.

4072417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 4072417 is about 2018.0230424849. The cubic root of 4072417 is about 159.6923384691.

It can be divided in two parts, 4072 and 417, that added together give a square (4489 = 67²).

The spelling of 4072417 in words is "four million, seventy-two thousand, four hundred seventeen".