47434381 has 4 divisors (see below), whose sum is σ = 47464000. Its totient is φ = 47404764.

The previous prime is 47434379. The next prime is 47434391. The reversal of 47434381 is 18343474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47434381 - 2¹ = 47434379 is a prime.

It is a super-2 number, since 2×47434381² = 4500041001706322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47434391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12261 + ... + 15658.

It is an arithmetic number, because the mean of its divisors is an integer number (11866000).

Almost surely, 2^47434381 is an apocalyptic number.

It is an amenable number.

47434381 is a deficient number, since it is larger than the sum of its proper divisors (29619).

47434381 is a wasteful number, since it uses less digits than its factorization.

47434381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29618.

The product of its digits is 32256, while the sum is 34.

The square root of 47434381 is about 6887.2622282007. The cubic root of 47434381 is about 361.9909773603.

The spelling of 47434381 in words is "forty-seven million, four hundred thirty-four thousand, three hundred eighty-one".