68277261 has 8 divisors (see below), whose sum is σ = 98039200. Its totient is φ = 42016752.

The previous prime is 68277257. The next prime is 68277289. The reversal of 68277261 is 16277286.

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

It is not a de Polignac number, because 68277261 - 2² = 68277257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1750699 = 68277261 / (6 + 8 + 2 + 7 + 7 + 2 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68277061) 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, 875311 + ... + 875388.

It is an arithmetic number, because the mean of its divisors is an integer number (12254900).

Almost surely, 2^68277261 is an apocalyptic number.

It is an amenable number.

68277261 is a deficient number, since it is larger than the sum of its proper divisors (29761939).

68277261 is a wasteful number, since it uses less digits than its factorization.

68277261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750715.

The product of its digits is 56448, while the sum is 39.

The square root of 68277261 is about 8263.0055669835. The cubic root of 68277261 is about 408.7195048745.

The spelling of 68277261 in words is "sixty-eight million, two hundred seventy-seven thousand, two hundred sixty-one".