87434357 has 4 divisors (see below), whose sum is σ = 87467436. Its totient is φ = 87401280.

The previous prime is 87434329. The next prime is 87434377. The reversal of 87434357 is 75343478.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23290276 + 64144081 = 4826^2 + 8009^2 .

It is a cyclic number.

It is not a de Polignac number, because 87434357 - 2²⁶ = 20325493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87434317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12194 + ... + 17987.

It is an arithmetic number, because the mean of its divisors is an integer number (21866859).

Almost surely, 2^87434357 is an apocalyptic number.

It is an amenable number.

87434357 is a deficient number, since it is larger than the sum of its proper divisors (33079).

87434357 is a wasteful number, since it uses less digits than its factorization.

87434357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33078.

The product of its digits is 282240, while the sum is 41.

The square root of 87434357 is about 9350.6340426733. The cubic root of 87434357 is about 443.8409546549.

The spelling of 87434357 in words is "eighty-seven million, four hundred thirty-four thousand, three hundred fifty-seven".