87260686 has 4 divisors (see below), whose sum is σ = 130891032. Its totient is φ = 43630342.

The previous prime is 87260671. The next prime is 87260687. The reversal of 87260686 is 68606278.

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

It is a super-2 number, since 2×87260686² = 15228854642381192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87260687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21815170 + ... + 21815173.

It is an arithmetic number, because the mean of its divisors is an integer number (32722758).

Almost surely, 2^87260686 is an apocalyptic number.

87260686 is a deficient number, since it is larger than the sum of its proper divisors (43630346).

87260686 is a wasteful number, since it uses less digits than its factorization.

87260686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43630345.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 87260686 is about 9341.3428370872. The cubic root of 87260686 is about 443.5468925428.

The spelling of 87260686 in words is "eighty-seven million, two hundred sixty thousand, six hundred eighty-six".