87396574429 has 2 divisors, whose sum is σ = 87396574430. Its totient is φ = 87396574428.

The previous prime is 87396574387. The next prime is 87396574451. The reversal of 87396574429 is 92447569378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70878412900 + 16518161529 = 266230^2 + 128523^2 .

It is a cyclic number.

It is not a de Polignac number, because 87396574429 - 2²¹ = 87394477277 is a prime.

It is a super-2 number, since 2×87396574429² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87396574829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43698287214 + 43698287215.

It is an arithmetic number, because the mean of its divisors is an integer number (43698287215).

Almost surely, 2^87396574429 is an apocalyptic number.

It is an amenable number.

87396574429 is a deficient number, since it is larger than the sum of its proper divisors (1).

87396574429 is an equidigital number, since it uses as much as digits as its factorization.

87396574429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91445760, while the sum is 64.

It can be divided in two parts, 87396 and 574429, that added together give a triangular number (661825 = T₁₁₅₀).

The spelling of 87396574429 in words is "eighty-seven billion, three hundred ninety-six million, five hundred seventy-four thousand, four hundred twenty-nine".