47978548 has 6 divisors (see below), whose sum is σ = 83962466. Its totient is φ = 23989272.

The previous prime is 47978527. The next prime is 47978551. The reversal of 47978548 is 84587974.

It can be written as a sum of positive squares in only one way, i.e., 42276004 + 5702544 = 6502^2 + 2388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47978495 and 47978504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5997315 + ... + 5997322.

Almost surely, 2^47978548 is an apocalyptic number.

It is an amenable number.

47978548 is a deficient number, since it is larger than the sum of its proper divisors (35983918).

47978548 is a wasteful number, since it uses less digits than its factorization.

47978548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11994641 (or 11994639 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The square root of 47978548 is about 6926.6548925149. The cubic root of 47978548 is about 363.3699704005.

The spelling of 47978548 in words is "forty-seven million, nine hundred seventy-eight thousand, five hundred forty-eight".