39249493 has 2 divisors, whose sum is σ = 39249494. Its totient is φ = 39249492.

The previous prime is 39249487. The next prime is 39249527. The reversal of 39249493 is 39494293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28536964 + 10712529 = 5342^2 + 3273^2 .

It is a cyclic number.

It is not a de Polignac number, because 39249493 - 2⁵ = 39249461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39249403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19624746 + 19624747.

It is an arithmetic number, because the mean of its divisors is an integer number (19624747).

Almost surely, 2^39249493 is an apocalyptic number.

It is an amenable number.

39249493 is a deficient number, since it is larger than the sum of its proper divisors (1).

39249493 is an equidigital number, since it uses as much as digits as its factorization.

39249493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 43.

The square root of 39249493 is about 6264.9415799351. The cubic root of 39249493 is about 339.8427560084.

The spelling of 39249493 in words is "thirty-nine million, two hundred forty-nine thousand, four hundred ninety-three".