68631267 has 6 divisors (see below), whose sum is σ = 91527492. Its totient is φ = 45744612.

The previous prime is 68631259. The next prime is 68631307. The reversal of 68631267 is 76213686.

It is not a de Polignac number, because 68631267 - 2³ = 68631259 is a prime.

It is a super-3 number, since 3×68631267³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68631247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11958 + ... + 16740.

It is an arithmetic number, because the mean of its divisors is an integer number (15254582).

Almost surely, 2^68631267 is an apocalyptic number.

68631267 is a deficient number, since it is larger than the sum of its proper divisors (22896225).

68631267 is an frugal number, since it uses more digits than its factorization.

68631267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9569 (or 4786 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 68631267 is about 8284.3990126019. The cubic root of 68631267 is about 409.4246679593.

The spelling of 68631267 in words is "sixty-eight million, six hundred thirty-one thousand, two hundred sixty-seven".