87513466 has 4 divisors (see below), whose sum is σ = 131270202. Its totient is φ = 43756732.

The previous prime is 87513463. The next prime is 87513469. The reversal of 87513466 is 66431578.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (87513463) and next prime (87513469).

It can be written as a sum of positive squares in only one way, i.e., 45846441 + 41667025 = 6771^2 + 6455^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (87513463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21878365 + ... + 21878368.

Almost surely, 2^87513466 is an apocalyptic number.

87513466 is a deficient number, since it is larger than the sum of its proper divisors (43756736).

87513466 is a wasteful number, since it uses less digits than its factorization.

87513466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43756735.

The product of its digits is 120960, while the sum is 40.

The square root of 87513466 is about 9354.8632272204. The cubic root of 87513466 is about 443.9747740179.

It can be divided in two parts, 875 and 13466, that added together give a palindrome (14341).

The spelling of 87513466 in words is "eighty-seven million, five hundred thirteen thousand, four hundred sixty-six".