672547155 has 32 divisors (see below), whose sum is σ = 1234635264. Its totient is φ = 306241536.

The previous prime is 672547151. The next prime is 672547223. The reversal of 672547155 is 551745276.

It is a happy number.

It is not a de Polignac number, because 672547155 - 2² = 672547151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672547151) 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 31 ways as a sum of consecutive naturals, for example, 14524 + ... + 39446.

It is an arithmetic number, because the mean of its divisors is an integer number (38582352).

Almost surely, 2^672547155 is an apocalyptic number.

672547155 is a deficient number, since it is larger than the sum of its proper divisors (562088109).

672547155 is a wasteful number, since it uses less digits than its factorization.

672547155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25195.

The product of its digits is 294000, while the sum is 42.

The square root of 672547155 is about 25933.5141274761. The cubic root of 672547155 is about 876.1414892598.

The spelling of 672547155 in words is "six hundred seventy-two million, five hundred forty-seven thousand, one hundred fifty-five".