68762987 has 2 divisors, whose sum is σ = 68762988. Its totient is φ = 68762986.

The previous prime is 68762963. The next prime is 68762989. The reversal of 68762987 is 78926786.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68762987 - 2⁸ = 68762731 is a prime.

Together with 68762989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68762989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34381493 + 34381494.

It is an arithmetic number, because the mean of its divisors is an integer number (34381494).

Almost surely, 2^68762987 is an apocalyptic number.

68762987 is a deficient number, since it is larger than the sum of its proper divisors (1).

68762987 is an equidigital number, since it uses as much as digits as its factorization.

68762987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 53.

The square root of 68762987 is about 8292.3450844740. The cubic root of 68762987 is about 409.6864288892.

The spelling of 68762987 in words is "sixty-eight million, seven hundred sixty-two thousand, nine hundred eighty-seven".