409796871 has 12 divisors (see below), whose sum is σ = 600584376. Its totient is φ = 248361520.

The previous prime is 409796789. The next prime is 409796879. The reversal of 409796871 is 178697904.

It is not a de Polignac number, because 409796871 - 2⁷ = 409796743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409796879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564096 + ... + 564821.

It is an arithmetic number, because the mean of its divisors is an integer number (50048698).

Almost surely, 2^409796871 is an apocalyptic number.

409796871 is a deficient number, since it is larger than the sum of its proper divisors (190787505).

409796871 is a wasteful number, since it uses less digits than its factorization.

409796871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128942 (or 1128931 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 409796871 is about 20243.4401967650. The cubic root of 409796871 is about 742.7731779447.

The spelling of 409796871 in words is "four hundred nine million, seven hundred ninety-six thousand, eight hundred seventy-one".