3999461 has 2 divisors, whose sum is σ = 3999462. Its totient is φ = 3999460.

The previous prime is 3999449. The next prime is 3999467. The reversal of 3999461 is 1649993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3876961 + 122500 = 1969^2 + 350^2 .

It is an emirp because it is prime and its reverse (1649993) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3999461 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 (3999467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999730 + 1999731.

It is an arithmetic number, because the mean of its divisors is an integer number (1999731).

Almost surely, 2^3999461 is an apocalyptic number.

It is an amenable number.

3999461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3999461 is an equidigital number, since it uses as much as digits as its factorization.

3999461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 41.

The square root of 3999461 is about 1999.8652454603. The cubic root of 3999461 is about 158.7329748001.

The spelling of 3999461 in words is "three million, nine hundred ninety-nine thousand, four hundred sixty-one".