39850493 has 2 divisors, whose sum is σ = 39850494. Its totient is φ = 39850492.

The previous prime is 39850487. The next prime is 39850529. The reversal of 39850493 is 39405893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27269284 + 12581209 = 5222^2 + 3547^2 .

It is a cyclic number.

It is not a de Polignac number, because 39850493 - 2⁴ = 39850477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39850493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39850453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19925246 + 19925247.

It is an arithmetic number, because the mean of its divisors is an integer number (19925247).

Almost surely, 2^39850493 is an apocalyptic number.

It is an amenable number.

39850493 is a deficient number, since it is larger than the sum of its proper divisors (1).

39850493 is an equidigital number, since it uses as much as digits as its factorization.

39850493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 39850493 is about 6312.7246890705. The cubic root of 39850493 is about 341.5685684131.

The spelling of 39850493 in words is "thirty-nine million, eight hundred fifty thousand, four hundred ninety-three".