87050693 has 4 divisors (see below), whose sum is σ = 92171340. Its totient is φ = 81930048.

The previous prime is 87050669. The next prime is 87050737. The reversal of 87050693 is 39605078.

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 26553409 + 60497284 = 5153^2 + 7778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87050693 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 (87050993) 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 in 3 ways as a sum of consecutive naturals, for example, 2560298 + ... + 2560331.

It is an arithmetic number, because the mean of its divisors is an integer number (23042835).

Almost surely, 2^87050693 is an apocalyptic number.

It is an amenable number.

87050693 is a deficient number, since it is larger than the sum of its proper divisors (5120647).

87050693 is a wasteful number, since it uses less digits than its factorization.

87050693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120646.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 87050693 is about 9330.0960873937. The cubic root of 87050693 is about 443.1908079485.

The spelling of 87050693 in words is "eighty-seven million, fifty thousand, six hundred ninety-three".