672261247 has 4 divisors (see below), whose sum is σ = 768298576. Its totient is φ = 576223920.

The previous prime is 672261229. The next prime is 672261253. The reversal of 672261247 is 742162276.

672261247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 672261247 - 2¹¹ = 672259199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672261217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48018654 + ... + 48018667.

It is an arithmetic number, because the mean of its divisors is an integer number (192074644).

Almost surely, 2^672261247 is an apocalyptic number.

672261247 is a deficient number, since it is larger than the sum of its proper divisors (96037329).

672261247 is an equidigital number, since it uses as much as digits as its factorization.

672261247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96037328.

The product of its digits is 56448, while the sum is 37.

The square root of 672261247 is about 25928.0012149028. The cubic root of 672261247 is about 876.0173188510.

The spelling of 672261247 in words is "six hundred seventy-two million, two hundred sixty-one thousand, two hundred forty-seven".