87654073 has 8 divisors (see below), whose sum is σ = 96948488. Its totient is φ = 78724224.

The previous prime is 87654071. The next prime is 87654089. The reversal of 87654073 is 37045678.

It can be written as a sum of positive squares in 4 ways, for example, as 24880144 + 62773929 = 4988^2 + 7923^2 .

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 87654073 - 2¹ = 87654071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87654071) 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, 90636 + ... + 91597.

It is an arithmetic number, because the mean of its divisors is an integer number (12118561).

Almost surely, 2^87654073 is an apocalyptic number.

It is an amenable number.

87654073 is a deficient number, since it is larger than the sum of its proper divisors (9294415).

87654073 is a wasteful number, since it uses less digits than its factorization.

87654073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182283.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 87654073 is about 9362.3753930293. The cubic root of 87654073 is about 444.2124233789.

The spelling of 87654073 in words is "eighty-seven million, six hundred fifty-four thousand, seventy-three".