65672471 has 2 divisors, whose sum is σ = 65672472. Its totient is φ = 65672470.

The previous prime is 65672461. The next prime is 65672507. The reversal of 65672471 is 17427656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65672471 - 2⁶ = 65672407 is a prime.

It is a super-3 number, since 3×65672471³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65672461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836235 + 32836236.

It is an arithmetic number, because the mean of its divisors is an integer number (32836236).

Almost surely, 2^65672471 is an apocalyptic number.

65672471 is a deficient number, since it is larger than the sum of its proper divisors (1).

65672471 is an equidigital number, since it uses as much as digits as its factorization.

65672471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 65672471 is about 8103.8553170698. The cubic root of 65672471 is about 403.4543965675.

The spelling of 65672471 in words is "sixty-five million, six hundred seventy-two thousand, four hundred seventy-one".