41691861 has 16 divisors (see below), whose sum is σ = 62406400. Its totient is φ = 27506304.

The previous prime is 41691851. The next prime is 41691863. The reversal of 41691861 is 16819614.

It is a happy number.

It is not a de Polignac number, because 41691861 - 2⁵ = 41691829 is a prime.

It is a super-2 number, since 2×41691861² = 3476422547286642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41691863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5341 + ... + 10578.

It is an arithmetic number, because the mean of its divisors is an integer number (3900400).

Almost surely, 2^41691861 is an apocalyptic number.

It is an amenable number.

41691861 is a deficient number, since it is larger than the sum of its proper divisors (20714539).

41691861 is a wasteful number, since it uses less digits than its factorization.

41691861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16025 (or 16019 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 41691861 is about 6456.9234934294. The cubic root of 41691861 is about 346.7504981967.

The spelling of 41691861 in words is "forty-one million, six hundred ninety-one thousand, eight hundred sixty-one".