39830961 has 4 divisors (see below), whose sum is σ = 53107952. Its totient is φ = 26553972.

The previous prime is 39830957. The next prime is 39830977. The reversal of 39830961 is 16903893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39830961 - 2² = 39830957 is a prime.

It is a super-3 number, since 3×39830961³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39820961) 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, 6638491 + ... + 6638496.

It is an arithmetic number, because the mean of its divisors is an integer number (13276988).

Almost surely, 2^39830961 is an apocalyptic number.

It is an amenable number.

39830961 is a deficient number, since it is larger than the sum of its proper divisors (13276991).

39830961 is a wasteful number, since it uses less digits than its factorization.

39830961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13276990.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 39830961 is about 6311.1774654180. The cubic root of 39830961 is about 341.5127547369.

The spelling of 39830961 in words is "thirty-nine million, eight hundred thirty thousand, nine hundred sixty-one".