68884951 has 2 divisors, whose sum is σ = 68884952. Its totient is φ = 68884950.

The previous prime is 68884903. The next prime is 68884957. The reversal of 68884951 is 15948886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68884951 - 2¹¹ = 68882903 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68884895 and 68884904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68884957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34442475 + 34442476.

It is an arithmetic number, because the mean of its divisors is an integer number (34442476).

Almost surely, 2^68884951 is an apocalyptic number.

68884951 is a deficient number, since it is larger than the sum of its proper divisors (1).

68884951 is an equidigital number, since it uses as much as digits as its factorization.

68884951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 49.

The square root of 68884951 is about 8299.6958378003. The cubic root of 68884951 is about 409.9285042892.

It can be divided in two parts, 688849 and 51, that added together give a square (688900 = 830²).

The spelling of 68884951 in words is "sixty-eight million, eight hundred eighty-four thousand, nine hundred fifty-one".