47434538 has 4 divisors (see below), whose sum is σ = 71151810. Its totient is φ = 23717268.

The previous prime is 47434537. The next prime is 47434561. The reversal of 47434538 is 83543474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39778249 + 7656289 = 6307^2 + 2767^2 .

It is not an unprimeable number, because it can be changed into a prime (47434537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11858633 + ... + 11858636.

Almost surely, 2^47434538 is an apocalyptic number.

47434538 is a deficient number, since it is larger than the sum of its proper divisors (23717272).

47434538 is a wasteful number, since it uses less digits than its factorization.

47434538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23717271.

The product of its digits is 161280, while the sum is 38.

The square root of 47434538 is about 6887.2736260439. The cubic root of 47434538 is about 361.9913767367.

The spelling of 47434538 in words is "forty-seven million, four hundred thirty-four thousand, five hundred thirty-eight".