87215093 has 8 divisors (see below), whose sum is σ = 103111680. Its totient is φ = 72177840.

The previous prime is 87215081. The next prime is 87215099. The reversal of 87215093 is 39051278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87215093 - 2¹² = 87210997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87215099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214613 + ... + 215018.

It is an arithmetic number, because the mean of its divisors is an integer number (12888960).

Almost surely, 2^87215093 is an apocalyptic number.

It is an amenable number.

87215093 is a deficient number, since it is larger than the sum of its proper divisors (15896587).

87215093 is a wasteful number, since it uses less digits than its factorization.

87215093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429667.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 87215093 is about 9338.9021303363. The cubic root of 87215093 is about 443.4696292013.

The spelling of 87215093 in words is "eighty-seven million, two hundred fifteen thousand, ninety-three".