672877919 has 4 divisors (see below), whose sum is σ = 769003344. Its totient is φ = 576752496.

The previous prime is 672877879. The next prime is 672877921. The reversal of 672877919 is 919778276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672877919 is a prime.

It is a super-2 number, since 2×672877919² = 905529387755541122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672877999) 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, 48062702 + ... + 48062715.

It is an arithmetic number, because the mean of its divisors is an integer number (192250836).

Almost surely, 2^672877919 is an apocalyptic number.

672877919 is a deficient number, since it is larger than the sum of its proper divisors (96125425).

672877919 is an equidigital number, since it uses as much as digits as its factorization.

672877919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96125424.

The product of its digits is 2667168, while the sum is 56.

The square root of 672877919 is about 25939.8904970703. The cubic root of 672877919 is about 876.2850968202.

The spelling of 672877919 in words is "six hundred seventy-two million, eight hundred seventy-seven thousand, nine hundred nineteen".