47009436 has 12 divisors (see below), whose sum is σ = 109688712. Its totient is φ = 15669808.

The previous prime is 47009429. The next prime is 47009453. The reversal of 47009436 is 63490074.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 47009397 and 47009406.

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, 1958715 + ... + 1958738.

It is an arithmetic number, because the mean of its divisors is an integer number (9140726).

Almost surely, 2^47009436 is an apocalyptic number.

It is an amenable number.

47009436 is an abundant number, since it is smaller than the sum of its proper divisors (62679276).

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

47009436 is a wasteful number, since it uses less digits than its factorization.

47009436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917460 (or 3917458 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 47009436 is about 6856.3427568931. The cubic root of 47009436 is about 360.9067573786.

The spelling of 47009436 in words is "forty-seven million, nine thousand, four hundred thirty-six".