47409481 has 16 divisors (see below), whose sum is σ = 57839616. Its totient is φ = 37933056.

The previous prime is 47409473. The next prime is 47409493. The reversal of 47409481 is 18490474.

47409481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47409481 - 2³ = 47409473 is a prime.

It is a super-3 number, since 3×47409481³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47409481.

It is not an unprimeable number, because it can be changed into a prime (47409421) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13545 + ... + 16681.

It is an arithmetic number, because the mean of its divisors is an integer number (3614976).

Almost surely, 2^47409481 is an apocalyptic number.

It is an amenable number.

47409481 is a deficient number, since it is larger than the sum of its proper divisors (10430135).

47409481 is a wasteful number, since it uses less digits than its factorization.

47409481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 47409481 is about 6885.4543059990. The cubic root of 47409481 is about 361.9276256114.

It can be divided in two parts, 4740 and 9481, that multiplied together give a triangular number (44939940 = T₉₄₈₀).

The spelling of 47409481 in words is "forty-seven million, four hundred nine thousand, four hundred eighty-one".