99877687 has 8 divisors (see below), whose sum is σ = 122926496. Its totient is φ = 79024032.

The previous prime is 99877667. The next prime is 99877697. The reversal of 99877687 is 78677899.

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 99877687 - 2¹¹ = 99875639 is a prime.

It is a super-3 number, since 3×99877687³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99877627) 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, 548688 + ... + 548869.

It is an arithmetic number, because the mean of its divisors is an integer number (15365812).

Almost surely, 2^99877687 is an apocalyptic number.

99877687 is a deficient number, since it is larger than the sum of its proper divisors (23048809).

99877687 is a wasteful number, since it uses less digits than its factorization.

99877687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097577.

The product of its digits is 10668672, while the sum is 61.

The square root of 99877687 is about 9993.8824787967. The cubic root of 99877687 is about 463.9695639345.

The spelling of 99877687 in words is "ninety-nine million, eight hundred seventy-seven thousand, six hundred eighty-seven".