87213110 has 8 divisors (see below), whose sum is σ = 156983616. Its totient is φ = 34885240.

The previous prime is 87213053. The next prime is 87213131. The reversal of 87213110 is 1131278.

It is a happy number.

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

It is a super-2 number, since 2×87213110² = 15212253111744200, which contains 22 as substring.

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, 4360646 + ... + 4360665.

It is an arithmetic number, because the mean of its divisors is an integer number (19622952).

Almost surely, 2^87213110 is an apocalyptic number.

87213110 is a deficient number, since it is larger than the sum of its proper divisors (69770506).

87213110 is a wasteful number, since it uses less digits than its factorization.

87213110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721318.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 87213110 is about 9338.7959609363. The cubic root of 87213110 is about 443.4662681357.

Adding to 87213110 its reverse (1131278), we get a palindrome (88344388).

The spelling of 87213110 in words is "eighty-seven million, two hundred thirteen thousand, one hundred ten".