8921887 has 16 divisors (see below), whose sum is σ = 10372320. Its totient is φ = 7603200.

The previous prime is 8921873. The next prime is 8921911. The reversal of 8921887 is 7881298.

It is a cyclic number.

It is not a de Polignac number, because 8921887 - 2¹¹ = 8919839 is a prime.

It is a super-3 number, since 3×8921887³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8921837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9687 + ... + 10567.

It is an arithmetic number, because the mean of its divisors is an integer number (648270).

Almost surely, 2^8921887 is an apocalyptic number.

8921887 is a deficient number, since it is larger than the sum of its proper divisors (1450433).

8921887 is a wasteful number, since it uses less digits than its factorization.

8921887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954.

The product of its digits is 64512, while the sum is 43.

The square root of 8921887 is about 2986.9527950739. The cubic root of 8921887 is about 207.4048491988.

The spelling of 8921887 in words is "eight million, nine hundred twenty-one thousand, eight hundred eighty-seven".