87563345 has 8 divisors (see below), whose sum is σ = 111257064. Its totient is φ = 65929984.

The previous prime is 87563341. The next prime is 87563347. The reversal of 87563345 is 54336578.

It can be written as a sum of positive squares in 4 ways, for example, as 868624 + 86694721 = 932^2 + 9311^2 .

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 87563345 - 2² = 87563341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87563341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514994 + ... + 515163.

It is an arithmetic number, because the mean of its divisors is an integer number (13907133).

Almost surely, 2^87563345 is an apocalyptic number.

87563345 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87563345 is a deficient number, since it is larger than the sum of its proper divisors (23693719).

87563345 is a wasteful number, since it uses less digits than its factorization.

87563345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030179.

The product of its digits is 302400, while the sum is 41.

The square root of 87563345 is about 9357.5287870249. The cubic root of 87563345 is about 444.0591069892.

The spelling of 87563345 in words is "eighty-seven million, five hundred sixty-three thousand, three hundred forty-five".