39056693 has 4 divisors (see below), whose sum is σ = 42061068. Its totient is φ = 36052320.

The previous prime is 39056681. The next prime is 39056711. The reversal of 39056693 is 39665093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39665093 = 13 ⋅3051161.

It can be written as a sum of positive squares in 2 ways, for example, as 6589489 + 32467204 = 2567^2 + 5698^2 .

It is a cyclic number.

It is not a de Polignac number, because 39056693 - 2¹⁶ = 38991157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39056693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39056393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502168 + ... + 1502193.

It is an arithmetic number, because the mean of its divisors is an integer number (10515267).

Almost surely, 2^39056693 is an apocalyptic number.

It is an amenable number.

39056693 is a deficient number, since it is larger than the sum of its proper divisors (3004375).

39056693 is a wasteful number, since it uses less digits than its factorization.

39056693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004374.

The product of its (nonzero) digits is 131220, while the sum is 41.

The square root of 39056693 is about 6249.5354227334. The cubic root of 39056693 is about 339.2853877765.

Subtracting 39056693 from its reverse (39665093), we obtain a square (608400 = 780²).

The spelling of 39056693 in words is "thirty-nine million, fifty-six thousand, six hundred ninety-three".