39303961 has 4 divisors (see below), whose sum is σ = 40659300. Its totient is φ = 37948624.

The previous prime is 39303959. The next prime is 39303977. The reversal of 39303961 is 16930393.

It is a happy number.

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 20985561 + 18318400 = 4581^2 + 4280^2 .

It is a cyclic number.

It is not a de Polignac number, because 39303961 - 2¹ = 39303959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39303931) 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, 677626 + ... + 677683.

It is an arithmetic number, because the mean of its divisors is an integer number (10164825).

Almost surely, 2^39303961 is an apocalyptic number.

It is an amenable number.

39303961 is a deficient number, since it is larger than the sum of its proper divisors (1355339).

39303961 is a wasteful number, since it uses less digits than its factorization.

39303961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355338.

The product of its (nonzero) digits is 13122, while the sum is 34.

The square root of 39303961 is about 6269.2871205584. The cubic root of 39303961 is about 339.9998875432. Note that the first 3 decimals are identical.

The spelling of 39303961 in words is "thirty-nine million, three hundred three thousand, nine hundred sixty-one".