47979546 has 8 divisors (see below), whose sum is σ = 95959104. Its totient is φ = 15993180.

The previous prime is 47979521. The next prime is 47979551. The reversal of 47979546 is 64597974.

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

47979546 is an admirable number.

It is a super-2 number, since 2×47979546² = 4604073668732232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3998290 + ... + 3998301.

It is an arithmetic number, because the mean of its divisors is an integer number (11994888).

Almost surely, 2^47979546 is an apocalyptic number.

47979546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47979546 is a wasteful number, since it uses less digits than its factorization.

47979546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7996596.

The product of its digits is 1905120, while the sum is 51.

The square root of 47979546 is about 6926.7269326862. The cubic root of 47979546 is about 363.3724898648.

The spelling of 47979546 in words is "forty-seven million, nine hundred seventy-nine thousand, five hundred forty-six".