87229015 has 4 divisors (see below), whose sum is σ = 104674824. Its totient is φ = 69783208.

The previous prime is 87229007. The next prime is 87229067. The reversal of 87229015 is 51092278.

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

It is a cyclic number.

It is not a de Polignac number, because 87229015 - 2³ = 87229007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8722897 + ... + 8722906.

It is an arithmetic number, because the mean of its divisors is an integer number (26168706).

Almost surely, 2^87229015 is an apocalyptic number.

87229015 is a deficient number, since it is larger than the sum of its proper divisors (17445809).

87229015 is a wasteful number, since it uses less digits than its factorization.

87229015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17445808.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 87229015 is about 9339.6474772874. The cubic root of 87229015 is about 443.4932247185.

The spelling of 87229015 in words is "eighty-seven million, two hundred twenty-nine thousand, fifteen".