672777888 has 24 divisors (see below), whose sum is σ = 1766042208. Its totient is φ = 224259264.

The previous prime is 672777883. The next prime is 672777893. The reversal of 672777888 is 888777276.

It is an interprime number because it is at equal distance from previous prime (672777883) and next prime (672777893).

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (672777883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3503956 + ... + 3504147.

It is an arithmetic number, because the mean of its divisors is an integer number (73585092).

Almost surely, 2^672777888 is an apocalyptic number.

It is an amenable number.

672777888 is an abundant number, since it is smaller than the sum of its proper divisors (1093264320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672777888 is a wasteful number, since it uses less digits than its factorization.

672777888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008116 (or 7008108 counting only the distinct ones).

The product of its digits is 14751744, while the sum is 60.

The square root of 672777888 is about 25937.9622946753. The cubic root of 672777888 is about 876.2416714003.

The spelling of 672777888 in words is "six hundred seventy-two million, seven hundred seventy-seven thousand, eight hundred eighty-eight".