672723377 has 4 divisors (see below), whose sum is σ = 672785520. Its totient is φ = 672661236.

The previous prime is 672723319. The next prime is 672723419. The reversal of 672723377 is 773327276.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 672723377 - 2⁶ = 672723313 is a prime.

It is a super-3 number, since 3×672723377³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672753377) 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, 10127 + ... + 38052.

It is an arithmetic number, because the mean of its divisors is an integer number (168196380).

Almost surely, 2^672723377 is an apocalyptic number.

It is an amenable number.

672723377 is a deficient number, since it is larger than the sum of its proper divisors (62143).

672723377 is a wasteful number, since it uses less digits than its factorization.

672723377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62142.

The product of its digits is 518616, while the sum is 44.

The square root of 672723377 is about 25936.9114776606. The cubic root of 672723377 is about 876.2180052936.

The spelling of 672723377 in words is "six hundred seventy-two million, seven hundred twenty-three thousand, three hundred seventy-seven".