268196397 has 16 divisors (see below), whose sum is σ = 409099392. Its totient is φ = 153097920.

The previous prime is 268196393. The next prime is 268196413. The reversal of 268196397 is 793691862.

It is not a de Polignac number, because 268196397 - 2² = 268196393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268196393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16263 + ... + 28299.

It is an arithmetic number, because the mean of its divisors is an integer number (25568712).

Almost surely, 2^268196397 is an apocalyptic number.

It is an amenable number.

268196397 is a deficient number, since it is larger than the sum of its proper divisors (140902995).

268196397 is a wasteful number, since it uses less digits than its factorization.

268196397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13108.

The product of its digits is 979776, while the sum is 51.

The square root of 268196397 is about 16376.7028732892. The cubic root of 268196397 is about 644.8880257516. Note that the first 3 decimals are identical.

The spelling of 268196397 in words is "two hundred sixty-eight million, one hundred ninety-six thousand, three hundred ninety-seven".