671534601 has 4 divisors (see below), whose sum is σ = 895379472. Its totient is φ = 447689732.

The previous prime is 671534597. The next prime is 671534603. The reversal of 671534601 is 106435176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 671534601 - 2² = 671534597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671534603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111922431 + ... + 111922436.

It is an arithmetic number, because the mean of its divisors is an integer number (223844868).

Almost surely, 2^671534601 is an apocalyptic number.

It is an amenable number.

671534601 is a deficient number, since it is larger than the sum of its proper divisors (223844871).

671534601 is a wasteful number, since it uses less digits than its factorization.

671534601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223844870.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 671534601 is about 25913.9846607966. The cubic root of 671534601 is about 875.7015765352.

Adding to 671534601 its reverse (106435176), we get a palindrome (777969777).

The spelling of 671534601 in words is "six hundred seventy-one million, five hundred thirty-four thousand, six hundred one".