65673401 has 2 divisors, whose sum is σ = 65673402. Its totient is φ = 65673400.

The previous prime is 65673343. The next prime is 65673403. The reversal of 65673401 is 10437656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 10394176 = 7435^2 + 3224^2 .

It is a cyclic number.

It is not a de Polignac number, because 65673401 - 2⁶ = 65673337 is a prime.

Together with 65673403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65673403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836700 + 32836701.

It is an arithmetic number, because the mean of its divisors is an integer number (32836701).

Almost surely, 2^65673401 is an apocalyptic number.

It is an amenable number.

65673401 is a deficient number, since it is larger than the sum of its proper divisors (1).

65673401 is an equidigital number, since it uses as much as digits as its factorization.

65673401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 65673401 is about 8103.9126969631. The cubic root of 65673401 is about 403.4563010226.

The spelling of 65673401 in words is "sixty-five million, six hundred seventy-three thousand, four hundred one".