47403381 has 8 divisors (see below), whose sum is σ = 63818560. Its totient is φ = 31295232.

The previous prime is 47403379. The next prime is 47403407. The reversal of 47403381 is 18330474.

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

It is not a de Polignac number, because 47403381 - 2¹ = 47403379 is a prime.

It is a super-2 number, since 2×47403381² = 4494161060462322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47403341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76396 + ... + 77013.

It is an arithmetic number, because the mean of its divisors is an integer number (7977320).

Almost surely, 2^47403381 is an apocalyptic number.

It is an amenable number.

47403381 is a deficient number, since it is larger than the sum of its proper divisors (16415179).

47403381 is a wasteful number, since it uses less digits than its factorization.

47403381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153515.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 47403381 is about 6885.0113289667. The cubic root of 47403381 is about 361.9121023225.

The spelling of 47403381 in words is "forty-seven million, four hundred three thousand, three hundred eighty-one".