486761989 has 4 divisors (see below), whose sum is σ = 556299424. Its totient is φ = 417224556.

The previous prime is 486761987. The next prime is 486761993. The reversal of 486761989 is 989167684.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 486761989 - 2¹ = 486761987 is a prime.

It is a super-2 number, since 2×486761989² = 473874467870472242, 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 (486761987) 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, 34768707 + ... + 34768720.

It is an arithmetic number, because the mean of its divisors is an integer number (139074856).

Almost surely, 2^486761989 is an apocalyptic number.

It is an amenable number.

486761989 is a deficient number, since it is larger than the sum of its proper divisors (69537435).

486761989 is an equidigital number, since it uses as much as digits as its factorization.

486761989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69537434.

The product of its digits is 5225472, while the sum is 58.

The square root of 486761989 is about 22062.6831777098. The cubic root of 486761989 is about 786.6331041372.

The spelling of 486761989 in words is "four hundred eighty-six million, seven hundred sixty-one thousand, nine hundred eighty-nine".