268787377 has 4 divisors (see below), whose sum is σ = 268842496. Its totient is φ = 268732260.

The previous prime is 268787369. The next prime is 268787381. The reversal of 268787377 is 773787862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773787862 = 2 ⋅386893931.

It is a cyclic number.

It is not a de Polignac number, because 268787377 - 2³ = 268787369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268787347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19449 + ... + 30262.

It is an arithmetic number, because the mean of its divisors is an integer number (67210624).

Almost surely, 2^268787377 is an apocalyptic number.

It is an amenable number.

268787377 is a deficient number, since it is larger than the sum of its proper divisors (55119).

268787377 is an equidigital number, since it uses as much as digits as its factorization.

268787377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55118.

The product of its digits is 5531904, while the sum is 55.

The square root of 268787377 is about 16394.7362589338. The cubic root of 268787377 is about 645.3613559155.

The spelling of 268787377 in words is "two hundred sixty-eight million, seven hundred eighty-seven thousand, three hundred seventy-seven".