87920207 has 8 divisors (see below), whose sum is σ = 89915280. Its totient is φ = 85942080.

The previous prime is 87920167. The next prime is 87920227. The reversal of 87920207 is 70202978.

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

It is a cyclic number.

It is not a de Polignac number, because 87920207 - 2⁶ = 87920143 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 (87920227) 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, 6563 + ... + 14795.

It is an arithmetic number, because the mean of its divisors is an integer number (11239410).

Almost surely, 2^87920207 is an apocalyptic number.

87920207 is a deficient number, since it is larger than the sum of its proper divisors (1995073).

87920207 is a wasteful number, since it uses less digits than its factorization.

87920207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8473.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 87920207 is about 9376.5775739339. The cubic root of 87920207 is about 444.6615395484.

The spelling of 87920207 in words is "eighty-seven million, nine hundred twenty thousand, two hundred seven".