87163769 has 8 divisors (see below), whose sum is σ = 108671808. Its totient is φ = 67919760.

The previous prime is 87163753. The next prime is 87163771. The reversal of 87163769 is 96736178.

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 87163769 - 2⁴ = 87163753 is a prime.

It is a super-2 number, since 2×87163769² = 15195045252570722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87163799) 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, 565922 + ... + 566075.

It is an arithmetic number, because the mean of its divisors is an integer number (13583976).

Almost surely, 2^87163769 is an apocalyptic number.

It is an amenable number.

87163769 is a deficient number, since it is larger than the sum of its proper divisors (21508039).

87163769 is a wasteful number, since it uses less digits than its factorization.

87163769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132015.

The product of its digits is 381024, while the sum is 47.

The square root of 87163769 is about 9336.1538654844. The cubic root of 87163769 is about 443.3826217021.

The spelling of 87163769 in words is "eighty-seven million, one hundred sixty-three thousand, seven hundred sixty-nine".