68214977 has 2 divisors, whose sum is σ = 68214978. Its totient is φ = 68214976.

The previous prime is 68214953. The next prime is 68215009. The reversal of 68214977 is 77941286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53129521 + 15085456 = 7289^2 + 3884^2 .

It is a cyclic number.

It is not a de Polignac number, because 68214977 - 2⁸ = 68214721 is a prime.

It is a super-2 number, since 2×68214977² = 9306566174221058, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68214947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34107488 + 34107489.

It is an arithmetic number, because the mean of its divisors is an integer number (34107489).

Almost surely, 2^68214977 is an apocalyptic number.

It is an amenable number.

68214977 is a deficient number, since it is larger than the sum of its proper divisors (1).

68214977 is an equidigital number, since it uses as much as digits as its factorization.

68214977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 68214977 is about 8259.2358605382. The cubic root of 68214977 is about 408.5951861291.

The spelling of 68214977 in words is "sixty-eight million, two hundred fourteen thousand, nine hundred seventy-seven".