39085457 has 4 divisors (see below), whose sum is σ = 39431460. Its totient is φ = 38739456.

The previous prime is 39085439. The next prime is 39085463. The reversal of 39085457 is 75458093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75458093 = 137 ⋅550789.

It can be written as a sum of positive squares in 2 ways, for example, as 7230721 + 31854736 = 2689^2 + 5644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39085457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39085427) 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 3 ways as a sum of consecutive naturals, for example, 172832 + ... + 173057.

It is an arithmetic number, because the mean of its divisors is an integer number (9857865).

Almost surely, 2^39085457 is an apocalyptic number.

It is an amenable number.

39085457 is a deficient number, since it is larger than the sum of its proper divisors (346003).

39085457 is a wasteful number, since it uses less digits than its factorization.

39085457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346002.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 39085457 is about 6251.8362902431. The cubic root of 39085457 is about 339.3686582682.

The spelling of 39085457 in words is "thirty-nine million, eighty-five thousand, four hundred fifty-seven".