39849401 has 2 divisors, whose sum is σ = 39849402. Its totient is φ = 39849400.

The previous prime is 39849371. The next prime is 39849413. The reversal of 39849401 is 10494893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39075001 + 774400 = 6251^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 39849401 - 2²² = 35655097 is a prime.

It is not a weakly prime, because it can be changed into another prime (39849461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19924700 + 19924701.

It is an arithmetic number, because the mean of its divisors is an integer number (19924701).

Almost surely, 2^39849401 is an apocalyptic number.

It is an amenable number.

39849401 is a deficient number, since it is larger than the sum of its proper divisors (1).

39849401 is an equidigital number, since it uses as much as digits as its factorization.

39849401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 39849401 is about 6312.6381965071. The cubic root of 39849401 is about 341.5654484494.

The spelling of 39849401 in words is "thirty-nine million, eight hundred forty-nine thousand, four hundred one".