39894901 has 2 divisors, whose sum is σ = 39894902. Its totient is φ = 39894900.

The previous prime is 39894859. The next prime is 39894913. The reversal of 39894901 is 10949893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32194276 + 7700625 = 5674^2 + 2775^2 .

It is a cyclic number.

It is not a de Polignac number, because 39894901 - 2¹⁹ = 39370613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39894931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19947450 + 19947451.

It is an arithmetic number, because the mean of its divisors is an integer number (19947451).

Almost surely, 2^39894901 is an apocalyptic number.

It is an amenable number.

39894901 is a deficient number, since it is larger than the sum of its proper divisors (1).

39894901 is an equidigital number, since it uses as much as digits as its factorization.

39894901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 39894901 is about 6316.2410498650. The cubic root of 39894901 is about 341.6953986810.

The spelling of 39894901 in words is "thirty-nine million, eight hundred ninety-four thousand, nine hundred one".