268187247 has 8 divisors (see below), whose sum is σ = 397314480. Its totient is φ = 178791480.

The previous prime is 268187239. The next prime is 268187263. The reversal of 268187247 is 742781862.

It is not a de Polignac number, because 268187247 - 2³ = 268187239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268187207) 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, 4966404 + ... + 4966457.

It is an arithmetic number, because the mean of its divisors is an integer number (49664310).

Almost surely, 2^268187247 is an apocalyptic number.

268187247 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

268187247 is a deficient number, since it is larger than the sum of its proper divisors (129127233).

268187247 is an equidigital number, since it uses as much as digits as its factorization.

268187247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9932870 (or 9932864 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 268187247 is about 16376.4235106448. The cubic root of 268187247 is about 644.8806918319.

The spelling of 268187247 in words is "two hundred sixty-eight million, one hundred eighty-seven thousand, two hundred forty-seven".