87194029 has 6 divisors (see below), whose sum is σ = 94417386. Its totient is φ = 80486640.

The previous prime is 87194027. The next prime is 87194033. The reversal of 87194029 is 92049178.

It can be written as a sum of positive squares in 3 ways, for example, as 1261129 + 85932900 = 1123^2 + 9270^2 .

It is not a de Polignac number, because 87194029 - 2¹ = 87194027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87193982 and 87194000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87194027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257802 + ... + 258139.

It is an arithmetic number, because the mean of its divisors is an integer number (15736231).

Almost surely, 2^87194029 is an apocalyptic number.

It is an amenable number.

87194029 is a deficient number, since it is larger than the sum of its proper divisors (7223357).

87194029 is a wasteful number, since it uses less digits than its factorization.

87194029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515967 (or 515954 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 87194029 is about 9337.7743065465. The cubic root of 87194029 is about 443.4339243858.

The spelling of 87194029 in words is "eighty-seven million, one hundred ninety-four thousand, twenty-nine".