87727544 has 8 divisors (see below), whose sum is σ = 164489160. Its totient is φ = 43863768.

The previous prime is 87727537. The next prime is 87727547. The reversal of 87727544 is 44572778.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×87727544² = 15392243952543872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87727495 and 87727504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87727547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5482964 + ... + 5482979.

It is an arithmetic number, because the mean of its divisors is an integer number (20561145).

Almost surely, 2^87727544 is an apocalyptic number.

It is an amenable number.

87727544 is a deficient number, since it is larger than the sum of its proper divisors (76761616).

87727544 is a wasteful number, since it uses less digits than its factorization.

87727544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10965949 (or 10965945 counting only the distinct ones).

The product of its digits is 439040, while the sum is 44.

The square root of 87727544 is about 9366.2983082966. The cubic root of 87727544 is about 444.3365005817.

The spelling of 87727544 in words is "eighty-seven million, seven hundred twenty-seven thousand, five hundred forty-four".