601868643 has 16 divisors (see below), whose sum is σ = 865334400. Its totient is φ = 370854720.

The previous prime is 601868599. The next prime is 601868651. The reversal of 601868643 is 346868106.

It is a happy number.

It is not a de Polignac number, because 601868643 - 2⁸ = 601868387 is a prime.

It is a super-2 number, since 2×601868643² = 724491726853322898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 601868595 and 601868604.

It is not an unprimeable number, because it can be changed into a prime (601868143) 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, 126433 + ... + 131106.

It is an arithmetic number, because the mean of its divisors is an integer number (54083400).

Almost surely, 2^601868643 is an apocalyptic number.

601868643 is a deficient number, since it is larger than the sum of its proper divisors (263465757).

601868643 is a wasteful number, since it uses less digits than its factorization.

601868643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257602.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 601868643 is about 24533.0112909117. The cubic root of 601868643 is about 844.3073548534.

The spelling of 601868643 in words is "six hundred one million, eight hundred sixty-eight thousand, six hundred forty-three".