87414869 has 2 divisors, whose sum is σ = 87414870. Its totient is φ = 87414868.

The previous prime is 87414841. The next prime is 87414883. The reversal of 87414869 is 96841478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83046769 + 4368100 = 9113^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 87414869 - 2²⁴ = 70637653 is a prime.

It is a super-2 number, since 2×87414869² = 15282718644574322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87414469) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43707434 + 43707435.

It is an arithmetic number, because the mean of its divisors is an integer number (43707435).

Almost surely, 2^87414869 is an apocalyptic number.

It is an amenable number.

87414869 is a deficient number, since it is larger than the sum of its proper divisors (1).

87414869 is an equidigital number, since it uses as much as digits as its factorization.

87414869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 47.

The square root of 87414869 is about 9349.5919162282. The cubic root of 87414869 is about 443.8079767137.

The spelling of 87414869 in words is "eighty-seven million, four hundred fourteen thousand, eight hundred sixty-nine".