268308997 has 8 divisors (see below), whose sum is σ = 293122080. Its totient is φ = 243566160.

The previous prime is 268308983. The next prime is 268309003. The reversal of 268308997 is 799803862.

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 268308997 - 2²³ = 259920389 is a prime.

It is a super-2 number, since 2×268308997² = 143979435742292018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268308967) 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, 9403 + ... + 25000.

It is an arithmetic number, because the mean of its divisors is an integer number (36640260).

Almost surely, 2^268308997 is an apocalyptic number.

It is an amenable number.

268308997 is a deficient number, since it is larger than the sum of its proper divisors (24813083).

268308997 is a wasteful number, since it uses less digits than its factorization.

268308997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35123.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 268308997 is about 16380.1403229643. The cubic root of 268308997 is about 644.9782633942.

The spelling of 268308997 in words is "two hundred sixty-eight million, three hundred eight thousand, nine hundred ninety-seven".