10615881 has 4 divisors (see below), whose sum is σ = 14154512. Its totient is φ = 7077252.

The previous prime is 10615873. The next prime is 10615907. The reversal of 10615881 is 18851601.

It is a happy number.

10615881 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 10615881 - 2³ = 10615873 is a prime.

It is a super-2 number, since 2×10615881² = 225393858812322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10615841) 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, 1769311 + ... + 1769316.

It is an arithmetic number, because the mean of its divisors is an integer number (3538628).

Almost surely, 2^10615881 is an apocalyptic number.

It is an amenable number.

10615881 is a deficient number, since it is larger than the sum of its proper divisors (3538631).

10615881 is an equidigital number, since it uses as much as digits as its factorization.

10615881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538630.

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 10615881 is about 3258.2021115947. The cubic root of 10615881 is about 219.7785719753.

The spelling of 10615881 in words is "ten million, six hundred fifteen thousand, eight hundred eighty-one".