87374947 has 12 divisors (see below), whose sum is σ = 96363288. Its totient is φ = 79164800.

The previous prime is 87374933. The next prime is 87374971. The reversal of 87374947 is 74947378.

It is not a de Polignac number, because 87374947 - 2¹¹ = 87372899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87374947.

It is not an unprimeable number, because it can be changed into a prime (87374347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40947 + ... + 43027.

It is an arithmetic number, because the mean of its divisors is an integer number (8030274).

Almost surely, 2^87374947 is an apocalyptic number.

87374947 is a deficient number, since it is larger than the sum of its proper divisors (8988341).

87374947 is a wasteful number, since it uses less digits than its factorization.

87374947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450 (or 2439 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 49.

The square root of 87374947 is about 9347.4567129246. The cubic root of 87374947 is about 443.7404046857.

The spelling of 87374947 in words is "eighty-seven million, three hundred seventy-four thousand, nine hundred forty-seven".