65950631 has 2 divisors, whose sum is σ = 65950632. Its totient is φ = 65950630.

The previous prime is 65950607. The next prime is 65950649. The reversal of 65950631 is 13605956.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65950631 - 2¹⁴ = 65934247 is a prime.

It is a super-2 number, since 2×65950631² = 8698971458596322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65950591 and 65950600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65950601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32975315 + 32975316.

It is an arithmetic number, because the mean of its divisors is an integer number (32975316).

Almost surely, 2^65950631 is an apocalyptic number.

65950631 is a deficient number, since it is larger than the sum of its proper divisors (1).

65950631 is an equidigital number, since it uses as much as digits as its factorization.

65950631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 65950631 is about 8120.9993843123. Note that the first 3 decimals coincide. The cubic root of 65950631 is about 404.0232133020.

The spelling of 65950631 in words is "sixty-five million, nine hundred fifty thousand, six hundred thirty-one".