87427745 has 8 divisors (see below), whose sum is σ = 104981184. Its totient is φ = 69896944.

The previous prime is 87427741. The next prime is 87427751. The reversal of 87427745 is 54772478.

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 87427745 - 2² = 87427741 is a prime.

It is a super-2 number, since 2×87427745² = 15287221191570050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87427696 and 87427705.

It is not an unprimeable number, because it can be changed into a prime (87427741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4502 + ... + 13968.

It is an arithmetic number, because the mean of its divisors is an integer number (13122648).

Almost surely, 2^87427745 is an apocalyptic number.

It is an amenable number.

87427745 is a deficient number, since it is larger than the sum of its proper divisors (17553439).

87427745 is a wasteful number, since it uses less digits than its factorization.

87427745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11319.

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

The square root of 87427745 is about 9350.2804770766. The cubic root of 87427745 is about 443.8297662598.

The spelling of 87427745 in words is "eighty-seven million, four hundred twenty-seven thousand, seven hundred forty-five".