672431101 has 4 divisors (see below), whose sum is σ = 672570304. Its totient is φ = 672291900.

The previous prime is 672431099. The next prime is 672431117. The reversal of 672431101 is 101134276.

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 672431101 - 2¹ = 672431099 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 (672431701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62085 + ... + 72106.

It is an arithmetic number, because the mean of its divisors is an integer number (168142576).

Almost surely, 2^672431101 is an apocalyptic number.

It is an amenable number.

672431101 is a deficient number, since it is larger than the sum of its proper divisors (139203).

672431101 is a wasteful number, since it uses less digits than its factorization.

672431101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139202.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 672431101 is about 25931.2765015531. The cubic root of 672431101 is about 876.0910910224.

Adding to 672431101 its reverse (101134276), we get a palindrome (773565377).

The spelling of 672431101 in words is "six hundred seventy-two million, four hundred thirty-one thousand, one hundred one".