87567479 has 8 divisors (see below), whose sum is σ = 89730960. Its totient is φ = 85409856.

The previous prime is 87567461. The next prime is 87567497. The reversal of 87567479 is 97476578.

It is an interprime number because it is at equal distance from previous prime (87567461) and next prime (87567497).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87567479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87567479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87567499) 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, 52019 + ... + 53675.

It is an arithmetic number, because the mean of its divisors is an integer number (11216370).

Almost surely, 2^87567479 is an apocalyptic number.

87567479 is a deficient number, since it is larger than the sum of its proper divisors (2163481).

87567479 is a wasteful number, since it uses less digits than its factorization.

87567479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929.

The product of its digits is 2963520, while the sum is 53.

The square root of 87567479 is about 9357.7496760706. The cubic root of 87567479 is about 444.0660951167.

Subtracting 87567479 from its reverse (97476578), we obtain a palindrome (9909099).

The spelling of 87567479 in words is "eighty-seven million, five hundred sixty-seven thousand, four hundred seventy-nine".