261027673 has 8 divisors (see below), whose sum is σ = 282810528. Its totient is φ = 239959104.

The previous prime is 261027661. The next prime is 261027691. The reversal of 261027673 is 376720162.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261027673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261027973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177811 + ... + 179272.

It is an arithmetic number, because the mean of its divisors is an integer number (35351316).

Almost surely, 2^261027673 is an apocalyptic number.

It is an amenable number.

261027673 is a deficient number, since it is larger than the sum of its proper divisors (21782855).

261027673 is a wasteful number, since it uses less digits than its factorization.

261027673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357143.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 261027673 is about 16156.3508565517. The cubic root of 261027673 is about 639.0902381454.

The spelling of 261027673 in words is "two hundred sixty-one million, twenty-seven thousand, six hundred seventy-three".