261086627 has 8 divisors (see below), whose sum is σ = 263183712. Its totient is φ = 258998400.

The previous prime is 261086621. The next prime is 261086671. The reversal of 261086627 is 726680162.

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 not a de Polignac number, because 261086627 - 2¹² = 261082531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261086621) 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, 64802 + ... + 68712.

It is an arithmetic number, because the mean of its divisors is an integer number (32897964).

Almost surely, 2^261086627 is an apocalyptic number.

261086627 is a deficient number, since it is larger than the sum of its proper divisors (2097085).

261086627 is a wasteful number, since it uses less digits than its factorization.

261086627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 261086627 is about 16158.1752373218. The cubic root of 261086627 is about 639.1383481016.

The spelling of 261086627 in words is "two hundred sixty-one million, eighty-six thousand, six hundred twenty-seven".