47742855 has 8 divisors (see below), whose sum is σ = 76388592. Its totient is φ = 25462848.

The previous prime is 47742833. The next prime is 47742887. The reversal of 47742855 is 55824774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47742855 - 2⁶ = 47742791 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591414 + ... + 1591443.

It is an arithmetic number, because the mean of its divisors is an integer number (9548574).

Almost surely, 2^47742855 is an apocalyptic number.

47742855 is a deficient number, since it is larger than the sum of its proper divisors (28645737).

47742855 is a wasteful number, since it uses less digits than its factorization.

47742855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182865.

The product of its digits is 313600, while the sum is 42.

The square root of 47742855 is about 6909.6204671458. The cubic root of 47742855 is about 362.7739791593.

The spelling of 47742855 in words is "forty-seven million, seven hundred forty-two thousand, eight hundred fifty-five".