39289393 has 8 divisors (see below), whose sum is σ = 46158336. Its totient is φ = 32970000.

The previous prime is 39289381. The next prime is 39289399. The reversal of 39289393 is 39398293.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39289393 - 2⁵ = 39289361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39289399) 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 in 7 ways as a sum of consecutive naturals, for example, 137233 + ... + 137518.

It is an arithmetic number, because the mean of its divisors is an integer number (5769792).

Almost surely, 2^39289393 is an apocalyptic number.

It is an amenable number.

39289393 is a deficient number, since it is larger than the sum of its proper divisors (6868943).

39289393 is a wasteful number, since it uses less digits than its factorization.

39289393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274775.

The product of its digits is 314928, while the sum is 46.

The square root of 39289393 is about 6268.1251582910. The cubic root of 39289393 is about 339.9578754040.

Subtracting 39289393 from its reverse (39398293), we obtain a square (108900 = 330²).

The spelling of 39289393 in words is "thirty-nine million, two hundred eighty-nine thousand, three hundred ninety-three".