486971999 has 4 divisors (see below), whose sum is σ = 487200336. Its totient is φ = 486743664.

The previous prime is 486971981. The next prime is 486972001. The reversal of 486971999 is 999179684.

It is a happy number.

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 486971999 - 2¹⁶ = 486906463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486971909) 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, 110939 + ... + 115244.

It is an arithmetic number, because the mean of its divisors is an integer number (121800084).

Almost surely, 2^486971999 is an apocalyptic number.

486971999 is a deficient number, since it is larger than the sum of its proper divisors (228337).

486971999 is a wasteful number, since it uses less digits than its factorization.

486971999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228336.

The product of its digits is 8817984, while the sum is 62.

The square root of 486971999 is about 22067.4420583809. The cubic root of 486971999 is about 786.7462169585.

The spelling of 486971999 in words is "four hundred eighty-six million, nine hundred seventy-one thousand, nine hundred ninety-nine".