4791538 has 4 divisors (see below), whose sum is σ = 7187310. Its totient is φ = 2395768.

The previous prime is 4791517. The next prime is 4791557. The reversal of 4791538 is 8351974.

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., 4297329 + 494209 = 2073^2 + 703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4791497 and 4791506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1197883 + ... + 1197886.

Almost surely, 2^4791538 is an apocalyptic number.

4791538 is a deficient number, since it is larger than the sum of its proper divisors (2395772).

4791538 is a wasteful number, since it uses less digits than its factorization.

4791538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395771.

The product of its digits is 30240, while the sum is 37.

The square root of 4791538 is about 2188.9581996923. The cubic root of 4791538 is about 168.5873479856.

It can be divided in two parts, 4791 and 538, that added together give a square (5329 = 73²).

The spelling of 4791538 in words is "four million, seven hundred ninety-one thousand, five hundred thirty-eight".