41972921 has 4 divisors (see below), whose sum is σ = 42068112. Its totient is φ = 41877732.

The previous prime is 41972899. The next prime is 41972923. The reversal of 41972921 is 12927914.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41972921 is a prime.

It is a super-3 number, since 3×41972921³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41972923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46931 + ... + 47816.

It is an arithmetic number, because the mean of its divisors is an integer number (10517028).

Almost surely, 2^41972921 is an apocalyptic number.

It is an amenable number.

41972921 is a deficient number, since it is larger than the sum of its proper divisors (95191).

41972921 is an equidigital number, since it uses as much as digits as its factorization.

41972921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95190.

The product of its digits is 9072, while the sum is 35.

The square root of 41972921 is about 6478.6511713473. The cubic root of 41972921 is about 347.5279442014.

The spelling of 41972921 in words is "forty-one million, nine hundred seventy-two thousand, nine hundred twenty-one".