47821406 has 16 divisors (see below), whose sum is σ = 76602240. Its totient is φ = 22340640.

The previous prime is 47821399. The next prime is 47821441. The reversal of 47821406 is 60412874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11501 + ... + 15096.

It is an arithmetic number, because the mean of its divisors is an integer number (4787640).

Almost surely, 2^47821406 is an apocalyptic number.

47821406 is a deficient number, since it is larger than the sum of its proper divisors (28780834).

47821406 is a wasteful number, since it uses less digits than its factorization.

47821406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26659.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 47821406 is about 6915.3023072025. The cubic root of 47821406 is about 362.9728266788.

The spelling of 47821406 in words is "forty-seven million, eight hundred twenty-one thousand, four hundred six".