87429077 has 2 divisors, whose sum is σ = 87429078. Its totient is φ = 87429076.

The previous prime is 87429059. The next prime is 87429137. The reversal of 87429077 is 77092478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84897796 + 2531281 = 9214^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 87429077 - 2⁸ = 87428821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87429047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43714538 + 43714539.

It is an arithmetic number, because the mean of its divisors is an integer number (43714539).

Almost surely, 2^87429077 is an apocalyptic number.

It is an amenable number.

87429077 is a deficient number, since it is larger than the sum of its proper divisors (1).

87429077 is an equidigital number, since it uses as much as digits as its factorization.

87429077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 87429077 is about 9350.3517046152. The cubic root of 87429077 is about 443.8320202287.

The spelling of 87429077 in words is "eighty-seven million, four hundred twenty-nine thousand, seventy-seven".