87876493 has 2 divisors, whose sum is σ = 87876494. Its totient is φ = 87876492.

The previous prime is 87876479. The next prime is 87876497. The reversal of 87876493 is 39467878.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65237929 + 22638564 = 8077^2 + 4758^2 .

It is a cyclic number.

It is not a de Polignac number, because 87876493 - 2⁵ = 87876461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87876493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87876497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43938246 + 43938247.

It is an arithmetic number, because the mean of its divisors is an integer number (43938247).

Almost surely, 2^87876493 is an apocalyptic number.

It is an amenable number.

87876493 is a deficient number, since it is larger than the sum of its proper divisors (1).

87876493 is an equidigital number, since it uses as much as digits as its factorization.

87876493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The square root of 87876493 is about 9374.2462630336. The cubic root of 87876493 is about 444.5878319689.

The spelling of 87876493 in words is "eighty-seven million, eight hundred seventy-six thousand, four hundred ninety-three".