65672329 has 2 divisors, whose sum is σ = 65672330. Its totient is φ = 65672328.

The previous prime is 65672317. The next prime is 65672351. The reversal of 65672329 is 92327656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61779600 + 3892729 = 7860^2 + 1973^2 .

It is a cyclic number.

It is not a de Polignac number, because 65672329 - 2⁵ = 65672297 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 65672291 and 65672300.

It is not a weakly prime, because it can be changed into another prime (65672359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836164 + 32836165.

It is an arithmetic number, because the mean of its divisors is an integer number (32836165).

Almost surely, 2^65672329 is an apocalyptic number.

It is an amenable number.

65672329 is a deficient number, since it is larger than the sum of its proper divisors (1).

65672329 is an equidigital number, since it uses as much as digits as its factorization.

65672329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 65672329 is about 8103.8465558030. The cubic root of 65672329 is about 403.4541057782.

The spelling of 65672329 in words is "sixty-five million, six hundred seventy-two thousand, three hundred twenty-nine".