87879853 has 2 divisors, whose sum is σ = 87879854. Its totient is φ = 87879852.

The previous prime is 87879839. The next prime is 87879863. The reversal of 87879853 is 35897878.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86825124 + 1054729 = 9318^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 87879853 - 2⁵ = 87879821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87879794 and 87879803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87879863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43939926 + 43939927.

It is an arithmetic number, because the mean of its divisors is an integer number (43939927).

Almost surely, 2^87879853 is an apocalyptic number.

It is an amenable number.

87879853 is a deficient number, since it is larger than the sum of its proper divisors (1).

87879853 is an equidigital number, since it uses as much as digits as its factorization.

87879853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 55.

The square root of 87879853 is about 9374.4254757292. The cubic root of 87879853 is about 444.5934982399.

The spelling of 87879853 in words is "eighty-seven million, eight hundred seventy-nine thousand, eight hundred fifty-three".