87762985 has 8 divisors (see below), whose sum is σ = 106282440. Its totient is φ = 69565824.

The previous prime is 87762979. The next prime is 87762991. The reversal of 87762985 is 58926778.

It is an interprime number because it is at equal distance from previous prime (87762979) and next prime (87762991).

It can be written as a sum of positive squares in 4 ways, for example, as 15784729 + 71978256 = 3973^2 + 8484^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87762985 is a prime.

It is a super-2 number, since 2×87762985² = 15404683072220450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79972 + ... + 81061.

It is an arithmetic number, because the mean of its divisors is an integer number (13285305).

Almost surely, 2^87762985 is an apocalyptic number.

It is an amenable number.

87762985 is a deficient number, since it is larger than the sum of its proper divisors (18519455).

87762985 is a wasteful number, since it uses less digits than its factorization.

87762985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161147.

The product of its digits is 1693440, while the sum is 52.

The square root of 87762985 is about 9368.1900599849. The cubic root of 87762985 is about 444.3963282749.

The spelling of 87762985 in words is "eighty-seven million, seven hundred sixty-two thousand, nine hundred eighty-five".