87676493 has 6 divisors (see below), whose sum is σ = 88263306. Its totient is φ = 87093552.

The previous prime is 87676487. The next prime is 87676499. The reversal of 87676493 is 39467678.

It is an interprime number because it is at equal distance from previous prime (87676487) and next prime (87676499).

It can be written as a sum of positive squares in 3 ways, for example, as 104329 + 87572164 = 323^2 + 9358^2 .

It is not a de Polignac number, because 87676493 - 2²⁶ = 20567629 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 (87676499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22871 + ... + 26427.

It is an arithmetic number, because the mean of its divisors is an integer number (14710551).

Almost surely, 2^87676493 is an apocalyptic number.

It is an amenable number.

87676493 is a deficient number, since it is larger than the sum of its proper divisors (586813).

87676493 is an equidigital number, since it uses as much as digits as its factorization.

87676493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871 (or 3714 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 50.

The square root of 87676493 is about 9363.5726621840. The cubic root of 87676493 is about 444.2502934333.

The spelling of 87676493 in words is "eighty-seven million, six hundred seventy-six thousand, four hundred ninety-three".