416942891 has 4 divisors (see below), whose sum is σ = 424809792. Its totient is φ = 409075992.

The previous prime is 416942881. The next prime is 416942927. The reversal of 416942891 is 198249614.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 416942891 - 2¹⁰ = 416941867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (416942881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3933371 + ... + 3933476.

It is an arithmetic number, because the mean of its divisors is an integer number (106202448).

Almost surely, 2^416942891 is an apocalyptic number.

416942891 is a deficient number, since it is larger than the sum of its proper divisors (7866901).

416942891 is an equidigital number, since it uses as much as digits as its factorization.

416942891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7866900.

The product of its digits is 124416, while the sum is 44.

The square root of 416942891 is about 20419.1794889021. The cubic root of 416942891 is about 747.0658043722.

The spelling of 416942891 in words is "four hundred sixteen million, nine hundred forty-two thousand, eight hundred ninety-one".