54784687 has 2 divisors, whose sum is σ = 54784688. Its totient is φ = 54784686.

The previous prime is 54784663. The next prime is 54784729. The reversal of 54784687 is 78648745.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54784687 - 2¹¹ = 54782639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54784687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54784607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27392343 + 27392344.

It is an arithmetic number, because the mean of its divisors is an integer number (27392344).

Almost surely, 2^54784687 is an apocalyptic number.

54784687 is a deficient number, since it is larger than the sum of its proper divisors (1).

54784687 is an equidigital number, since it uses as much as digits as its factorization.

54784687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1505280, while the sum is 49.

The square root of 54784687 is about 7401.6678525857. The cubic root of 54784687 is about 379.7983394456.

The spelling of 54784687 in words is "fifty-four million, seven hundred eighty-four thousand, six hundred eighty-seven".