10891955 has 8 divisors (see below), whose sum is σ = 13139232. Its totient is φ = 8667648.

The previous prime is 10891939. The next prime is 10891961. The reversal of 10891955 is 55919801.

10891955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10891955 - 2⁴ = 10891939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4679 + ... + 6608.

It is an arithmetic number, because the mean of its divisors is an integer number (1642404).

Almost surely, 2^10891955 is an apocalyptic number.

10891955 is a deficient number, since it is larger than the sum of its proper divisors (2247277).

10891955 is a wasteful number, since it uses less digits than its factorization.

10891955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11485.

The product of its (nonzero) digits is 16200, while the sum is 38.

The square root of 10891955 is about 3300.2961988282. The cubic root of 10891955 is about 221.6674606287.

The spelling of 10891955 in words is "ten million, eight hundred ninety-one thousand, nine hundred fifty-five".