47421478 has 8 divisors (see below), whose sum is σ = 76603968. Its totient is φ = 21886824.

The previous prime is 47421463. The next prime is 47421497. The reversal of 47421478 is 87412474.

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

It is a congruent 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, 911926 + ... + 911977.

It is an arithmetic number, because the mean of its divisors is an integer number (9575496).

Almost surely, 2^47421478 is an apocalyptic number.

47421478 is a deficient number, since it is larger than the sum of its proper divisors (29182490).

47421478 is a wasteful number, since it uses less digits than its factorization.

47421478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823918.

The product of its digits is 50176, while the sum is 37.

The square root of 47421478 is about 6886.3254352376. The cubic root of 47421478 is about 361.9581517103.

It can be divided in two parts, 474 and 21478, that added together give a cube (21952 = 28³).

The spelling of 47421478 in words is "forty-seven million, four hundred twenty-one thousand, four hundred seventy-eight".