87976841 has 2 divisors, whose sum is σ = 87976842. Its totient is φ = 87976840.

The previous prime is 87976813. The next prime is 87976871. The reversal of 87976841 is 14867978.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56851600 + 31125241 = 7540^2 + 5579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87976841 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87976841.

It is not a weakly prime, because it can be changed into another prime (87976871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43988420 + 43988421.

It is an arithmetic number, because the mean of its divisors is an integer number (43988421).

Almost surely, 2^87976841 is an apocalyptic number.

It is an amenable number.

87976841 is a deficient number, since it is larger than the sum of its proper divisors (1).

87976841 is an equidigital number, since it uses as much as digits as its factorization.

87976841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 50.

The square root of 87976841 is about 9379.5970595756. The cubic root of 87976841 is about 444.7569956337.

The spelling of 87976841 in words is "eighty-seven million, nine hundred seventy-six thousand, eight hundred forty-one".