601997667 has 16 divisors (see below), whose sum is σ = 820772352. Its totient is φ = 392299040.

The previous prime is 601997663. The next prime is 601997677. The reversal of 601997667 is 766799106.

It is a cyclic number.

It is not a de Polignac number, because 601997667 - 2² = 601997663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (601997663) 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, 134713 + ... + 139109.

It is an arithmetic number, because the mean of its divisors is an integer number (51298272).

Almost surely, 2^601997667 is an apocalyptic number.

601997667 is a deficient number, since it is larger than the sum of its proper divisors (218774685).

601997667 is a wasteful number, since it uses less digits than its factorization.

601997667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5418.

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 601997667 is about 24535.6407497338. The cubic root of 601997667 is about 844.3676825955.

The spelling of 601997667 in words is "six hundred one million, nine hundred ninety-seven thousand, six hundred sixty-seven".