601643967 has 4 divisors (see below), whose sum is σ = 802191960. Its totient is φ = 401095976.

The previous prime is 601643941. The next prime is 601643983. The reversal of 601643967 is 769346106.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 601643967 - 2⁷ = 601643839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601643927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100273992 + ... + 100273997.

It is an arithmetic number, because the mean of its divisors is an integer number (200547990).

Almost surely, 2^601643967 is an apocalyptic number.

601643967 is a deficient number, since it is larger than the sum of its proper divisors (200547993).

601643967 is a wasteful number, since it uses less digits than its factorization.

601643967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200547992.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 601643967 is about 24528.4318088214. The cubic root of 601643967 is about 844.2022825309.

The spelling of 601643967 in words is "six hundred one million, six hundred forty-three thousand, nine hundred sixty-seven".