47678455 has 16 divisors (see below), whose sum is σ = 66088224. Its totient is φ = 32634880.

The previous prime is 47678447. The next prime is 47678461. The reversal of 47678455 is 55487674.

It is a happy number.

It is not a de Polignac number, because 47678455 - 2³ = 47678447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24562 + ... + 26431.

It is an arithmetic number, because the mean of its divisors is an integer number (4130514).

Almost surely, 2^47678455 is an apocalyptic number.

47678455 is a deficient number, since it is larger than the sum of its proper divisors (18409769).

47678455 is a wasteful number, since it uses less digits than its factorization.

47678455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51026.

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

The square root of 47678455 is about 6904.9587254378. The cubic root of 47678455 is about 362.6107913433.

The spelling of 47678455 in words is "forty-seven million, six hundred seventy-eight thousand, four hundred fifty-five".