671244501 has 4 divisors (see below), whose sum is σ = 894992672. Its totient is φ = 447496332.

The previous prime is 671244493. The next prime is 671244503. The reversal of 671244501 is 105442176.

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 not a de Polignac number, because 671244501 - 2³ = 671244493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671244503) 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, 111874081 + ... + 111874086.

It is an arithmetic number, because the mean of its divisors is an integer number (223748168).

Almost surely, 2^671244501 is an apocalyptic number.

It is an amenable number.

671244501 is a deficient number, since it is larger than the sum of its proper divisors (223748171).

671244501 is a wasteful number, since it uses less digits than its factorization.

671244501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223748170.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 671244501 is about 25908.3866923435. The cubic root of 671244501 is about 875.5754586270.

Adding to 671244501 its reverse (105442176), we get a palindrome (776686677).

The spelling of 671244501 in words is "six hundred seventy-one million, two hundred forty-four thousand, five hundred one".