87894719 has 8 divisors (see below), whose sum is σ = 97511040. Its totient is φ = 78549400.

The previous prime is 87894713. The next prime is 87894731. The reversal of 87894719 is 91749878.

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 87894719 - 2¹² = 87890623 is a prime.

It is a super-2 number, since 2×87894719² = 15450963256177922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87894713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67067 + ... + 68364.

It is an arithmetic number, because the mean of its divisors is an integer number (12188880).

Almost surely, 2^87894719 is an apocalyptic number.

87894719 is a deficient number, since it is larger than the sum of its proper divisors (9616321).

87894719 is a wasteful number, since it uses less digits than its factorization.

87894719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135501.

The product of its digits is 1016064, while the sum is 53.

The square root of 87894719 is about 9375.2183441240. The cubic root of 87894719 is about 444.6185663834.

The spelling of 87894719 in words is "eighty-seven million, eight hundred ninety-four thousand, seven hundred nineteen".