200668731 has 16 divisors (see below), whose sum is σ = 284749344. Its totient is φ = 125264384.

The previous prime is 200668691. The next prime is 200668733. The reversal of 200668731 is 137866002.

It is a cyclic number.

It is not a de Polignac number, because 200668731 - 2⁹ = 200668219 is a prime.

It is a super-2 number, since 2×200668731² = 80535879202300722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200668692 and 200668701.

It is not an unprimeable number, because it can be changed into a prime (200668733) 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, 61 + ... + 20033.

It is an arithmetic number, because the mean of its divisors is an integer number (17796834).

Almost surely, 2^200668731 is an apocalyptic number.

200668731 is a deficient number, since it is larger than the sum of its proper divisors (84080613).

200668731 is a wasteful number, since it uses less digits than its factorization.

200668731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20190.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 200668731 is about 14165.7591042626. The cubic root of 200668731 is about 585.4546162999.

The spelling of 200668731 in words is "two hundred million, six hundred sixty-eight thousand, seven hundred thirty-one".