87206307 has 16 divisors (see below), whose sum is σ = 119180160. Its totient is φ = 56700800.

The previous prime is 87206297. The next prime is 87206309. The reversal of 87206307 is 70360278.

It is a cyclic number.

It is not a de Polignac number, because 87206307 - 2¹² = 87202211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87206309) 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 15 ways as a sum of consecutive naturals, for example, 21307 + ... + 25067.

It is an arithmetic number, because the mean of its divisors is an integer number (7448760).

Almost surely, 2^87206307 is an apocalyptic number.

87206307 is a deficient number, since it is larger than the sum of its proper divisors (31973853).

87206307 is a wasteful number, since it uses less digits than its factorization.

87206307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 87206307 is about 9338.4317205835. The cubic root of 87206307 is about 443.4547370732.

The spelling of 87206307 in words is "eighty-seven million, two hundred six thousand, three hundred seven".