87876541 has 2 divisors, whose sum is σ = 87876542. Its totient is φ = 87876540.

The previous prime is 87876533. The next prime is 87876557. The reversal of 87876541 is 14567878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67716441 + 20160100 = 8229^2 + 4490^2 .

It is a cyclic number.

It is not a de Polignac number, because 87876541 - 2³ = 87876533 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 87876491 and 87876500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87846541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43938270 + 43938271.

It is an arithmetic number, because the mean of its divisors is an integer number (43938271).

Almost surely, 2^87876541 is an apocalyptic number.

It is an amenable number.

87876541 is a deficient number, since it is larger than the sum of its proper divisors (1).

87876541 is an equidigital number, since it uses as much as digits as its factorization.

87876541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 46.

The square root of 87876541 is about 9374.2488232391. The cubic root of 87876541 is about 444.5879129166.

The spelling of 87876541 in words is "eighty-seven million, eight hundred seventy-six thousand, five hundred forty-one".