10887621 has 4 divisors (see below), whose sum is σ = 14516832. Its totient is φ = 7258412.

The previous prime is 10887619. The next prime is 10887623. The reversal of 10887621 is 12678801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (10887619) and next prime (10887623).

It is a cyclic number.

It is not a de Polignac number, because 10887621 - 2¹ = 10887619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10887623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814601 + ... + 1814606.

It is an arithmetic number, because the mean of its divisors is an integer number (3629208).

Almost surely, 2^10887621 is an apocalyptic number.

It is an amenable number.

10887621 is a deficient number, since it is larger than the sum of its proper divisors (3629211).

10887621 is an equidigital number, since it uses as much as digits as its factorization.

10887621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629210.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 10887621 is about 3299.6395257664. The cubic root of 10887621 is about 221.6380556159.

The spelling of 10887621 in words is "ten million, eight hundred eighty-seven thousand, six hundred twenty-one".