87475219 has 8 divisors (see below), whose sum is σ = 94806320. Its totient is φ = 80230176.

The previous prime is 87475207. The next prime is 87475231. The reversal of 87475219 is 91257478.

It is an interprime number because it is at equal distance from previous prime (87475207) and next prime (87475231).

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

It is a de Polignac number, because none of the positive numbers 2^k-87475219 is a prime.

It is a super-2 number, since 2×87475219² = 15303827878195922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87475249) 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, 19389 + ... + 23470.

It is an arithmetic number, because the mean of its divisors is an integer number (11850790).

Almost surely, 2^87475219 is an apocalyptic number.

87475219 is a deficient number, since it is larger than the sum of its proper divisors (7331101).

87475219 is a wasteful number, since it uses less digits than its factorization.

87475219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43029.

The product of its digits is 141120, while the sum is 43.

The square root of 87475219 is about 9352.8187729689. The cubic root of 87475219 is about 443.9100861540.

The spelling of 87475219 in words is "eighty-seven million, four hundred seventy-five thousand, two hundred nineteen".