411988207 has 4 divisors (see below), whose sum is σ = 412029640. Its totient is φ = 411946776.

The previous prime is 411988201. The next prime is 411988211. The reversal of 411988207 is 702889114.

It is a happy number.

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.

It is a 3-Lehmer number, since φ(411988207) divides (411988207-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-411988207 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 411988207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411988201) 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, 4144 + ... + 29002.

It is an arithmetic number, because the mean of its divisors is an integer number (103007410).

Almost surely, 2^411988207 is an apocalyptic number.

411988207 is the 16573-rd pentagonal number.

411988207 is a deficient number, since it is larger than the sum of its proper divisors (41433).

411988207 is a wasteful number, since it uses less digits than its factorization.

411988207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41432.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 411988207 is about 20297.4926284012. The cubic root of 411988207 is about 744.0947863348.

The spelling of 411988207 in words is "four hundred eleven million, nine hundred eighty-eight thousand, two hundred seven".