41288921 has 4 divisors (see below), whose sum is σ = 41308644. Its totient is φ = 41269200.

The previous prime is 41288917. The next prime is 41288939. The reversal of 41288921 is 12988214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 26574025 = 3836^2 + 5155^2 .

It is a cyclic number.

It is not a de Polignac number, because 41288921 - 2² = 41288917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41288021) 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, 6290 + ... + 11051.

It is an arithmetic number, because the mean of its divisors is an integer number (10327161).

Almost surely, 2^41288921 is an apocalyptic number.

It is an amenable number.

41288921 is a deficient number, since it is larger than the sum of its proper divisors (19723).

41288921 is a wasteful number, since it uses less digits than its factorization.

41288921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19722.

The product of its digits is 9216, while the sum is 35.

The square root of 41288921 is about 6425.6455706800. The cubic root of 41288921 is about 345.6297982825.

The spelling of 41288921 in words is "forty-one million, two hundred eighty-eight thousand, nine hundred twenty-one".