411391801 has 4 divisors (see below), whose sum is σ = 411433204. Its totient is φ = 411350400.

The previous prime is 411391787. The next prime is 411391807. The reversal of 411391801 is 108193114.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 108193114 = 2 ⋅54096557.

It can be written as a sum of positive squares in 2 ways, for example, as 22316176 + 389075625 = 4724^2 + 19725^2 .

It is a 3-Lehmer number, since φ(411391801) divides (411391801-1)³.

It is a cyclic number.

It is not a de Polignac number, because 411391801 - 2⁵ = 411391769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 411391801.

It is not an unprimeable number, because it can be changed into a prime (411391807) 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, 4141 + ... + 28981.

It is an arithmetic number, because the mean of its divisors is an integer number (102858301).

Almost surely, 2^411391801 is an apocalyptic number.

411391801 is the 16561-st pentagonal number.

It is an amenable number.

411391801 is a deficient number, since it is larger than the sum of its proper divisors (41403).

411391801 is a wasteful number, since it uses less digits than its factorization.

411391801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41402.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 411391801 is about 20282.7956899437. The cubic root of 411391801 is about 743.7355552499.

The spelling of 411391801 in words is "four hundred eleven million, three hundred ninety-one thousand, eight hundred one".