254671647 has 4 divisors (see below), whose sum is σ = 339562200. Its totient is φ = 169781096.

The previous prime is 254671607. The next prime is 254671661. The reversal of 254671647 is 746176452.

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 254671647 - 2⁶ = 254671583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 254671599 and 254671608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254671607) 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, 42445272 + ... + 42445277.

It is an arithmetic number, because the mean of its divisors is an integer number (84890550).

Almost surely, 2^254671647 is an apocalyptic number.

254671647 is a deficient number, since it is larger than the sum of its proper divisors (84890553).

254671647 is an equidigital number, since it uses as much as digits as its factorization.

254671647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84890552.

The product of its digits is 282240, while the sum is 42.

The square root of 254671647 is about 15958.4349796589. The cubic root of 254671647 is about 633.8602714957.

The spelling of 254671647 in words is "two hundred fifty-four million, six hundred seventy-one thousand, six hundred forty-seven".