4117591421 has 2 divisors, whose sum is σ = 4117591422. Its totient is φ = 4117591420.

The previous prime is 4117591397. The next prime is 4117591433. The reversal of 4117591421 is 1241957114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3803805625 + 313785796 = 61675^2 + 17714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4117591421 - 2²² = 4113397117 is a prime.

It is a super-2 number, since 2×4117591421² = 33909118220585598482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4117591481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2058795710 + 2058795711.

It is an arithmetic number, because the mean of its divisors is an integer number (2058795711).

Almost surely, 2^4117591421 is an apocalyptic number.

It is an amenable number.

4117591421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4117591421 is an equidigital number, since it uses as much as digits as its factorization.

4117591421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 35.

The square root of 4117591421 is about 64168.4612640821. The cubic root of 4117591421 is about 1602.8064574375.

The spelling of 4117591421 in words is "four billion, one hundred seventeen million, five hundred ninety-one thousand, four hundred twenty-one".