87676947 has 24 divisors (see below), whose sum is σ = 133183440. Its totient is φ = 55500480.

The previous prime is 87676933. The next prime is 87676951. The reversal of 87676947 is 74967678.

It is not a de Polignac number, because 87676947 - 2⁸ = 87676691 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 = 87676893 and 87676902.

It is not an unprimeable number, because it can be changed into a prime (87676907) 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 in 23 ways as a sum of consecutive naturals, for example, 13168 + ... + 18674.

It is an arithmetic number, because the mean of its divisors is an integer number (5549310).

Almost surely, 2^87676947 is an apocalyptic number.

87676947 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

87676947 is a deficient number, since it is larger than the sum of its proper divisors (45506493).

87676947 is a wasteful number, since it uses less digits than its factorization.

87676947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603 (or 5600 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 87676947 is about 9363.5969050360. The cubic root of 87676947 is about 444.2510602267.

The spelling of 87676947 in words is "eighty-seven million, six hundred seventy-six thousand, nine hundred forty-seven".