87579694 has 4 divisors (see below), whose sum is σ = 131369544. Its totient is φ = 43789846.

The previous prime is 87579599. The next prime is 87579697. The reversal of 87579694 is 49697578.

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

It is a super-2 number, since 2×87579694² = 15340405602267272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87579697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21894922 + ... + 21894925.

It is an arithmetic number, because the mean of its divisors is an integer number (32842386).

Almost surely, 2^87579694 is an apocalyptic number.

87579694 is a deficient number, since it is larger than the sum of its proper divisors (43789850).

87579694 is a wasteful number, since it uses less digits than its factorization.

87579694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43789849.

The product of its digits is 3810240, while the sum is 55.

The square root of 87579694 is about 9358.4023209093. The cubic root of 87579694 is about 444.0867421089.

The spelling of 87579694 in words is "eighty-seven million, five hundred seventy-nine thousand, six hundred ninety-four".