47685979 has 6 divisors (see below), whose sum is σ = 52415300. Its totient is φ = 43350780.

The previous prime is 47685961. The next prime is 47686019. The reversal of 47685979 is 97958674.

It is not a de Polignac number, because 47685979 - 2⁹ = 47685467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47685919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196929 + ... + 197170.

Almost surely, 2^47685979 is an apocalyptic number.

47685979 is a deficient number, since it is larger than the sum of its proper divisors (4729321).

47685979 is a wasteful number, since it uses less digits than its factorization.

47685979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394121 (or 394110 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The square root of 47685979 is about 6905.5035297942. The cubic root of 47685979 is about 362.6298645291.

The spelling of 47685979 in words is "forty-seven million, six hundred eighty-five thousand, nine hundred seventy-nine".