39995401 has 2 divisors, whose sum is σ = 39995402. Its totient is φ = 39995400.

The previous prime is 39995393. The next prime is 39995411. The reversal of 39995401 is 10459993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30261001 + 9734400 = 5501^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 39995401 - 2³ = 39995393 is a prime.

It is not a weakly prime, because it can be changed into another prime (39995411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19997700 + 19997701.

It is an arithmetic number, because the mean of its divisors is an integer number (19997701).

Almost surely, 2^39995401 is an apocalyptic number.

It is an amenable number.

39995401 is a deficient number, since it is larger than the sum of its proper divisors (1).

39995401 is an equidigital number, since it uses as much as digits as its factorization.

39995401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 39995401 is about 6324.1917270114. The cubic root of 39995401 is about 341.9820818674.

The spelling of 39995401 in words is "thirty-nine million, nine hundred ninety-five thousand, four hundred one".