87429113 has 16 divisors (see below), whose sum is σ = 98372880. Its totient is φ = 77285376.

The previous prime is 87429077. The next prime is 87429137. The reversal of 87429113 is 31192478.

It can be written as a sum of positive squares in 8 ways, for example, as 27164944 + 60264169 = 5212^2 + 7763^2 .

It is a cyclic number.

It is not a de Polignac number, because 87429113 - 2¹⁴ = 87412729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87429163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15845 + ... + 20637.

It is an arithmetic number, because the mean of its divisors is an integer number (6148305).

Almost surely, 2^87429113 is an apocalyptic number.

It is an amenable number.

87429113 is a deficient number, since it is larger than the sum of its proper divisors (10943767).

87429113 is a wasteful number, since it uses less digits than its factorization.

87429113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876.

The product of its digits is 12096, while the sum is 35.

The square root of 87429113 is about 9350.3536296763. The cubic root of 87429113 is about 443.8320811465.

The spelling of 87429113 in words is "eighty-seven million, four hundred twenty-nine thousand, one hundred thirteen".