84737487 has 4 divisors (see below), whose sum is σ = 112983320. Its totient is φ = 56491656.

The previous prime is 84737467. The next prime is 84737489. The reversal of 84737487 is 78473748.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84737487 - 2⁶ = 84737423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84737489) 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 3 ways as a sum of consecutive naturals, for example, 14122912 + ... + 14122917.

It is an arithmetic number, because the mean of its divisors is an integer number (28245830).

Almost surely, 2^84737487 is an apocalyptic number.

84737487 is a deficient number, since it is larger than the sum of its proper divisors (28245833).

84737487 is a wasteful number, since it uses less digits than its factorization.

84737487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28245832.

The product of its digits is 1053696, while the sum is 48.

The square root of 84737487 is about 9205.2966818023. The cubic root of 84737487 is about 439.2298632071.

The spelling of 84737487 in words is "eighty-four million, seven hundred thirty-seven thousand, four hundred eighty-seven".