87934669 has 2 divisors, whose sum is σ = 87934670. Its totient is φ = 87934668.

The previous prime is 87934661. The next prime is 87934703. The reversal of 87934669 is 96643978.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82355625 + 5579044 = 9075^2 + 2362^2 .

It is a cyclic number.

It is not a de Polignac number, because 87934669 - 2³ = 87934661 is a prime.

It is a super-2 number, since 2×87934669² = 15465012024279122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87934661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43967334 + 43967335.

It is an arithmetic number, because the mean of its divisors is an integer number (43967335).

Almost surely, 2^87934669 is an apocalyptic number.

It is an amenable number.

87934669 is a deficient number, since it is larger than the sum of its proper divisors (1).

87934669 is an equidigital number, since it uses as much as digits as its factorization.

87934669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 52.

The square root of 87934669 is about 9377.3487191210. The cubic root of 87934669 is about 444.6859190126.

The spelling of 87934669 in words is "eighty-seven million, nine hundred thirty-four thousand, six hundred sixty-nine".