87579763 has 4 divisors (see below), whose sum is σ = 87604648. Its totient is φ = 87554880.

The previous prime is 87579761. The next prime is 87579773. The reversal of 87579763 is 36797578.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87579763 - 2¹ = 87579761 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 87579763.

It is not an unprimeable number, because it can be changed into a prime (87579761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6078 + ... + 14563.

It is an arithmetic number, because the mean of its divisors is an integer number (21901162).

Almost surely, 2^87579763 is an apocalyptic number.

87579763 is a deficient number, since it is larger than the sum of its proper divisors (24885).

87579763 is a wasteful number, since it uses less digits than its factorization.

87579763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24884.

The product of its digits is 2222640, while the sum is 52.

The square root of 87579763 is about 9358.4060074352. The cubic root of 87579763 is about 444.0868587340.

The spelling of 87579763 in words is "eighty-seven million, five hundred seventy-nine thousand, seven hundred sixty-three".