39970853 has 4 divisors (see below), whose sum is σ = 43045548. Its totient is φ = 36896160.

The previous prime is 39970817. The next prime is 39970883. The reversal of 39970853 is 35807993.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20052484 + 19918369 = 4478^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 39970853 - 2¹² = 39966757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39970883) 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, 1537328 + ... + 1537353.

It is an arithmetic number, because the mean of its divisors is an integer number (10761387).

Almost surely, 2^39970853 is an apocalyptic number.

It is an amenable number.

39970853 is a deficient number, since it is larger than the sum of its proper divisors (3074695).

39970853 is a wasteful number, since it uses less digits than its factorization.

39970853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074694.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 39970853 is about 6322.2506277433. The cubic root of 39970853 is about 341.9121013692.

The spelling of 39970853 in words is "thirty-nine million, nine hundred seventy thousand, eight hundred fifty-three".