39725465 has 16 divisors (see below), whose sum is σ = 51472848. Its totient is φ = 29258496.

The previous prime is 39725453. The next prime is 39725501. The reversal of 39725465 is 56452793.

39725465 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 8 ways, for example, as 6869641 + 32855824 = 2621^2 + 5732^2 .

It is a cyclic number.

It is not a de Polignac number, because 39725465 - 2¹⁰ = 39724441 is a prime.

It is a super-2 number, since 2×39725465² = 3156225138932450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39347 + ... + 40343.

It is an arithmetic number, because the mean of its divisors is an integer number (3217053).

Almost surely, 2^39725465 is an apocalyptic number.

It is an amenable number.

39725465 is a deficient number, since it is larger than the sum of its proper divisors (11747383).

39725465 is a wasteful number, since it uses less digits than its factorization.

39725465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628.

The product of its digits is 226800, while the sum is 41.

The square root of 39725465 is about 6302.8140540555. The cubic root of 39725465 is about 341.2109787349.

The spelling of 39725465 in words is "thirty-nine million, seven hundred twenty-five thousand, four hundred sixty-five".