672381461 has 4 divisors (see below), whose sum is σ = 672522432. Its totient is φ = 672240492.

The previous prime is 672381439. The next prime is 672381469. The reversal of 672381461 is 164183276.

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 a de Polignac number, because none of the positive numbers 2^k-672381461 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 (672381469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63071 + ... + 72956.

It is an arithmetic number, because the mean of its divisors is an integer number (168130608).

Almost surely, 2^672381461 is an apocalyptic number.

It is an amenable number.

672381461 is a deficient number, since it is larger than the sum of its proper divisors (140971).

672381461 is a wasteful number, since it uses less digits than its factorization.

672381461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140970.

The product of its digits is 48384, while the sum is 38.

The square root of 672381461 is about 25930.3193385658. The cubic root of 672381461 is about 876.0695323170.

The spelling of 672381461 in words is "six hundred seventy-two million, three hundred eighty-one thousand, four hundred sixty-one".