41979557 has 2 divisors, whose sum is σ = 41979558. Its totient is φ = 41979556.

The previous prime is 41979547. The next prime is 41979583. The reversal of 41979557 is 75597914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41977441 + 2116 = 6479^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 41979557 - 2¹⁶ = 41914021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41979517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20989778 + 20989779.

It is an arithmetic number, because the mean of its divisors is an integer number (20989779).

Almost surely, 2^41979557 is an apocalyptic number.

It is an amenable number.

41979557 is a deficient number, since it is larger than the sum of its proper divisors (1).

41979557 is an equidigital number, since it uses as much as digits as its factorization.

41979557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 396900, while the sum is 47.

The square root of 41979557 is about 6479.1632947472. The cubic root of 41979557 is about 347.5462581830.

The spelling of 41979557 in words is "forty-one million, nine hundred seventy-nine thousand, five hundred fifty-seven".