672065777 has 8 divisors (see below), whose sum is σ = 749052000. Its totient is φ = 599241024.

The previous prime is 672065767. The next prime is 672065843. The reversal of 672065777 is 777560276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 672065777 - 2²⁰ = 671017201 is a prime.

It is a super-2 number, since 2×672065777² = 903344817229227458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672065707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040027 + ... + 1040672.

It is an arithmetic number, because the mean of its divisors is an integer number (93631500).

Almost surely, 2^672065777 is an apocalyptic number.

It is an amenable number.

672065777 is a deficient number, since it is larger than the sum of its proper divisors (76986223).

672065777 is a wasteful number, since it uses less digits than its factorization.

672065777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080735.

The product of its (nonzero) digits is 864360, while the sum is 47.

The square root of 672065777 is about 25924.2314640184. The cubic root of 672065777 is about 875.9324055800.

The spelling of 672065777 in words is "six hundred seventy-two million, sixty-five thousand, seven hundred seventy-seven".