8261587 has 8 divisors (see below), whose sum is σ = 8509536. Its totient is φ = 8017152.

The previous prime is 8261573. The next prime is 8261621. The reversal of 8261587 is 7851628.

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 8261587 - 2¹⁹ = 7737299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8261567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4338 + ... + 5944.

It is an arithmetic number, because the mean of its divisors is an integer number (1063692).

Almost surely, 2^8261587 is an apocalyptic number.

8261587 is a deficient number, since it is larger than the sum of its proper divisors (247949).

8261587 is a wasteful number, since it uses less digits than its factorization.

8261587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757.

The product of its digits is 26880, while the sum is 37.

The square root of 8261587 is about 2874.2976533407. The cubic root of 8261587 is about 202.1565544516.

The spelling of 8261587 in words is "eight million, two hundred sixty-one thousand, five hundred eighty-seven".