87200247 has 4 divisors (see below), whose sum is σ = 116267000. Its totient is φ = 58133496.

The previous prime is 87200233. The next prime is 87200251. The reversal of 87200247 is 74200278.

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

It is not a de Polignac number, because 87200247 - 2⁷ = 87200119 is a prime.

It is a super-2 number, since 2×87200247² = 15207766153722018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87200207) 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, 14533372 + ... + 14533377.

It is an arithmetic number, because the mean of its divisors is an integer number (29066750).

Almost surely, 2^87200247 is an apocalyptic number.

87200247 is a deficient number, since it is larger than the sum of its proper divisors (29066753).

87200247 is a wasteful number, since it uses less digits than its factorization.

87200247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29066752.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 87200247 is about 9338.1072493306. The cubic root of 87200247 is about 443.4444648882. Note that the first 4 decimals are identical.

The spelling of 87200247 in words is "eighty-seven million, two hundred thousand, two hundred forty-seven".