87034729 has 2 divisors, whose sum is σ = 87034730. Its totient is φ = 87034728.

The previous prime is 87034723. The next prime is 87034769. The reversal of 87034729 is 92743078.

It is an a-pointer prime, because the next prime (87034769) can be obtained adding 87034729 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53626329 + 33408400 = 7323^2 + 5780^2 .

It is a cyclic number.

It is not a de Polignac number, because 87034729 - 2³ = 87034721 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 87034691 and 87034700.

It is not a weakly prime, because it can be changed into another prime (87034721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43517364 + 43517365.

It is an arithmetic number, because the mean of its divisors is an integer number (43517365).

Almost surely, 2^87034729 is an apocalyptic number.

It is an amenable number.

87034729 is a deficient number, since it is larger than the sum of its proper divisors (1).

87034729 is an equidigital number, since it uses as much as digits as its factorization.

87034729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 87034729 is about 9329.2405371498. The cubic root of 87034729 is about 443.1637144227.

The spelling of 87034729 in words is "eighty-seven million, thirty-four thousand, seven hundred twenty-nine".