41092721 has 2 divisors, whose sum is σ = 41092722. Its totient is φ = 41092720.

The previous prime is 41092703. The next prime is 41092729. The reversal of 41092721 is 12729014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32890225 + 8202496 = 5735^2 + 2864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41092721 is a prime.

It is a super-2 number, since 2×41092721² = 3377223438367682, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is equal to p_2496050 and since 41092721 and 2496050 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (41092729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20546360 + 20546361.

It is an arithmetic number, because the mean of its divisors is an integer number (20546361).

Almost surely, 2^41092721 is an apocalyptic number.

It is an amenable number.

41092721 is a deficient number, since it is larger than the sum of its proper divisors (1).

41092721 is an equidigital number, since it uses as much as digits as its factorization.

41092721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 41092721 is about 6410.3604422840. The cubic root of 41092721 is about 345.0814650441.

The spelling of 41092721 in words is "forty-one million, ninety-two thousand, seven hundred twenty-one".