65672339 has 4 divisors (see below), whose sum is σ = 66463656. Its totient is φ = 64881024.

The previous prime is 65672329. The next prime is 65672351. The reversal of 65672339 is 93327656.

65672339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 65672339 - 2²⁰ = 64623763 is a prime.

It is a super-2 number, since 2×65672339² = 8625712219461842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65672296 and 65672305.

It is not an unprimeable number, because it can be changed into a prime (65672329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395534 + ... + 395699.

It is an arithmetic number, because the mean of its divisors is an integer number (16615914).

Almost surely, 2^65672339 is an apocalyptic number.

65672339 is a deficient number, since it is larger than the sum of its proper divisors (791317).

65672339 is an equidigital number, since it uses as much as digits as its factorization.

65672339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791316.

The product of its digits is 204120, while the sum is 41.

The square root of 65672339 is about 8103.8471727939. The cubic root of 65672339 is about 403.4541262563.

The spelling of 65672339 in words is "sixty-five million, six hundred seventy-two thousand, three hundred thirty-nine".