47002978 has 16 divisors (see below), whose sum is σ = 77428800. Its totient is φ = 21222000.

The previous prime is 47002957. The next prime is 47002981. The reversal of 47002978 is 87920074.

It is a happy number.

47002978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3753 + ... + 10396.

It is an arithmetic number, because the mean of its divisors is an integer number (4839300).

Almost surely, 2^47002978 is an apocalyptic number.

47002978 is a deficient number, since it is larger than the sum of its proper divisors (30425822).

47002978 is a wasteful number, since it uses less digits than its factorization.

47002978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14313.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 47002978 is about 6855.8717899331. The cubic root of 47002978 is about 360.8902298983.

The spelling of 47002978 in words is "forty-seven million, two thousand, nine hundred seventy-eight".