45687489 has 16 divisors (see below), whose sum is σ = 64095360. Its totient is φ = 28909440.

The previous prime is 45687487. The next prime is 45687491. The reversal of 45687489 is 98478654.

It is an interprime number because it is at equal distance from previous prime (45687487) and next prime (45687491).

It is not a de Polignac number, because 45687489 - 2¹ = 45687487 is a prime.

It is a super-2 number, since 2×45687489² = 4174693302250242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45687487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469 + ... + 9570.

It is an arithmetic number, because the mean of its divisors is an integer number (4005960).

Almost surely, 2^45687489 is an apocalyptic number.

It is an amenable number.

45687489 is a deficient number, since it is larger than the sum of its proper divisors (18407871).

45687489 is a wasteful number, since it uses less digits than its factorization.

45687489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10120.

The product of its digits is 1935360, while the sum is 51.

The square root of 45687489 is about 6759.2521035984. The cubic root of 45687489 is about 357.4915354900.

The spelling of 45687489 in words is "forty-five million, six hundred eighty-seven thousand, four hundred eighty-nine".