672455771 has 16 divisors (see below), whose sum is σ = 769322400. Its totient is φ = 582640128.

The previous prime is 672455767. The next prime is 672455783. The reversal of 672455771 is 177554276.

It is a cyclic number.

It is not a de Polignac number, because 672455771 - 2² = 672455767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672455711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14435 + ... + 39411.

It is an arithmetic number, because the mean of its divisors is an integer number (48082650).

Almost surely, 2^672455771 is an apocalyptic number.

672455771 is a deficient number, since it is larger than the sum of its proper divisors (96866629).

672455771 is a wasteful number, since it uses less digits than its factorization.

672455771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25118.

The product of its digits is 411600, while the sum is 44.

The square root of 672455771 is about 25931.7521775911. The cubic root of 672455771 is about 876.1018048352.

The spelling of 672455771 in words is "six hundred seventy-two million, four hundred fifty-five thousand, seven hundred seventy-one".