411951989 has 4 divisors (see below), whose sum is σ = 426157260. Its totient is φ = 397746720.

The previous prime is 411951949. The next prime is 411952027. The reversal of 411951989 is 989159114.

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

It can be written as a sum of positive squares in 2 ways, for example, as 261889489 + 150062500 = 16183^2 + 12250^2 .

It is a cyclic number.

It is not a de Polignac number, because 411951989 - 2⁸ = 411951733 is a prime.

It is a super-2 number, since 2×411951989² = 339408882482112242, 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 (411951949) 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, 7102592 + ... + 7102649.

It is an arithmetic number, because the mean of its divisors is an integer number (106539315).

Almost surely, 2^411951989 is an apocalyptic number.

It is an amenable number.

411951989 is a deficient number, since it is larger than the sum of its proper divisors (14205271).

411951989 is a wasteful number, since it uses less digits than its factorization.

411951989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14205270.

The product of its digits is 116640, while the sum is 47.

The square root of 411951989 is about 20296.6004296286. The cubic root of 411951989 is about 744.0729811680.

The spelling of 411951989 in words is "four hundred eleven million, nine hundred fifty-one thousand, nine hundred eighty-nine".