39280925 has 6 divisors (see below), whose sum is σ = 48708378. Its totient is φ = 31424720.

The previous prime is 39280921. The next prime is 39280949. The reversal of 39280925 is 52908293.

39280925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 11042329 + 28238596 = 3323^2 + 5314^2 .

It is not a de Polignac number, because 39280925 - 2² = 39280921 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39280921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 785594 + ... + 785643.

It is an arithmetic number, because the mean of its divisors is an integer number (8118063).

Almost surely, 2^39280925 is an apocalyptic number.

It is an amenable number.

39280925 is a deficient number, since it is larger than the sum of its proper divisors (9427453).

39280925 is a wasteful number, since it uses less digits than its factorization.

39280925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571247 (or 1571242 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 39280925 is about 6267.4496408029. The cubic root of 39280925 is about 339.9334500658.

The spelling of 39280925 in words is "thirty-nine million, two hundred eighty thousand, nine hundred twenty-five".