4947531 has 8 divisors (see below), whose sum is σ = 6613200. Its totient is φ = 3290112.

The previous prime is 4947521. The next prime is 4947557. The reversal of 4947531 is 1357494.

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

It is not a de Polignac number, because 4947531 - 2⁵ = 4947499 is a prime.

It is a super-2 number, since 2×4947531² = 48956125991922, which contains 22 as substring.

4947531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4947492 and 4947501.

It is not an unprimeable number, because it can be changed into a prime (4947521) 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, 490 + ... + 3183.

It is an arithmetic number, because the mean of its divisors is an integer number (826650).

Almost surely, 2^4947531 is an apocalyptic number.

4947531 is a deficient number, since it is larger than the sum of its proper divisors (1665669).

4947531 is a wasteful number, since it uses less digits than its factorization.

4947531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125.

The product of its digits is 15120, while the sum is 33.

The square root of 4947531 is about 2224.3046104345. The cubic root of 4947531 is about 170.3973519503.

The spelling of 4947531 in words is "four million, nine hundred forty-seven thousand, five hundred thirty-one".