87093323857 has 4 divisors (see below), whose sum is σ = 87283900516. Its totient is φ = 86902747200.

The previous prime is 87093323813. The next prime is 87093323873. The reversal of 87093323857 is 75832339078.

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 60409774656 + 26683549201 = 245784^2 + 163351^2 .

It is a cyclic number.

It is not a de Polignac number, because 87093323857 - 2⁷ = 87093323729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87093323798 and 87093323807.

It is not an unprimeable number, because it can be changed into a prime (87093323557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95287644 + ... + 95288557.

It is an arithmetic number, because the mean of its divisors is an integer number (21820975129).

Almost surely, 2^87093323857 is an apocalyptic number.

It is an amenable number.

87093323857 is a deficient number, since it is larger than the sum of its proper divisors (190576659).

87093323857 is a wasteful number, since it uses less digits than its factorization.

87093323857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190576658.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 87093323857 in words is "eighty-seven billion, ninety-three million, three hundred twenty-three thousand, eight hundred fifty-seven".