41639797 has 2 divisors, whose sum is σ = 41639798. Its totient is φ = 41639796.

The previous prime is 41639779. The next prime is 41639803. The reversal of 41639797 is 79793614.

Together with previous prime (41639779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 1874161 = 6306^2 + 1369^2 .

It is a cyclic number.

It is not a de Polignac number, because 41639797 - 2⁷ = 41639669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41639747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20819898 + 20819899.

It is an arithmetic number, because the mean of its divisors is an integer number (20819899).

Almost surely, 2^41639797 is an apocalyptic number.

It is an amenable number.

41639797 is a deficient number, since it is larger than the sum of its proper divisors (1).

41639797 is an equidigital number, since it uses as much as digits as its factorization.

41639797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 46.

The square root of 41639797 is about 6452.8905925949. The cubic root of 41639797 is about 346.6060996053.

It can be divided in two parts, 41639 and 797, that added together give a square (42436 = 206²).

The spelling of 41639797 in words is "forty-one million, six hundred thirty-nine thousand, seven hundred ninety-seven".