4909731 has 4 divisors (see below), whose sum is σ = 6546312. Its totient is φ = 3273152.

The previous prime is 4909717. The next prime is 4909739. The reversal of 4909731 is 1379094.

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

It is a cyclic number.

It is not a de Polignac number, because 4909731 - 2¹³ = 4901539 is a prime.

It is a super-2 number, since 2×4909731² = 48210916984722, which contains 22 as substring.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 4909692 and 4909701.

It is not an unprimeable number, because it can be changed into a prime (4909739) 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, 818286 + ... + 818291.

It is an arithmetic number, because the mean of its divisors is an integer number (1636578).

Almost surely, 2^4909731 is an apocalyptic number.

4909731 is a deficient number, since it is larger than the sum of its proper divisors (1636581).

4909731 is a wasteful number, since it uses less digits than its factorization.

4909731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636580.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 4909731 is about 2215.7912807844. The cubic root of 4909731 is about 169.9622869053.

The spelling of 4909731 in words is "four million, nine hundred nine thousand, seven hundred thirty-one".