39706573 has 8 divisors (see below), whose sum is σ = 40977720. Its totient is φ = 38449920.

The previous prime is 39706553. The next prime is 39706591. The reversal of 39706573 is 37560793.

It can be written as a sum of positive squares in 4 ways, for example, as 243049 + 39463524 = 493^2 + 6282^2 .

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 39706573 - 2⁹ = 39706061 is a prime.

It is a super-2 number, since 2×39706573² = 3153223878808658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39706553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 9151.

It is an arithmetic number, because the mean of its divisors is an integer number (5122215).

Almost surely, 2^39706573 is an apocalyptic number.

It is an amenable number.

39706573 is a deficient number, since it is larger than the sum of its proper divisors (1271147).

39706573 is a wasteful number, since it uses less digits than its factorization.

39706573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7247.

The product of its (nonzero) digits is 119070, while the sum is 40.

The square root of 39706573 is about 6301.3151801826. The cubic root of 39706573 is about 341.1568809420.

The spelling of 39706573 in words is "thirty-nine million, seven hundred six thousand, five hundred seventy-three".