68687797 has 8 divisors (see below), whose sum is σ = 70502400. Its totient is φ = 66896544.

The previous prime is 68687789. The next prime is 68687809. The reversal of 68687797 is 79778686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68687797 - 2³ = 68687789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68687197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204 + ... + 11722.

It is an arithmetic number, because the mean of its divisors is an integer number (8812800).

Almost surely, 2^68687797 is an apocalyptic number.

68687797 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

68687797 is a deficient number, since it is larger than the sum of its proper divisors (1814603).

68687797 is a wasteful number, since it uses less digits than its factorization.

68687797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11675.

The product of its digits is 7112448, while the sum is 58.

The square root of 68687797 is about 8287.8101450262. The cubic root of 68687797 is about 409.5370483451.

The spelling of 68687797 in words is "sixty-eight million, six hundred eighty-seven thousand, seven hundred ninety-seven".