87654547 has 2 divisors, whose sum is σ = 87654548. Its totient is φ = 87654546.

The previous prime is 87654521. The next prime is 87654551. The reversal of 87654547 is 74545678.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87654547 - 2⁷ = 87654419 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 87654497 and 87654506.

It is not a weakly prime, because it can be changed into another prime (87654247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43827273 + 43827274.

It is an arithmetic number, because the mean of its divisors is an integer number (43827274).

Almost surely, 2^87654547 is an apocalyptic number.

87654547 is a deficient number, since it is larger than the sum of its proper divisors (1).

87654547 is an equidigital number, since it uses as much as digits as its factorization.

87654547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 46.

The square root of 87654547 is about 9362.4007070836. The cubic root of 87654547 is about 444.2132240882.

The spelling of 87654547 in words is "eighty-seven million, six hundred fifty-four thousand, five hundred forty-seven".