2747740731 has 8 divisors (see below), whose sum is σ = 3762672144. Its totient is φ = 1782318240.

The previous prime is 2747740729. The next prime is 2747740733. The reversal of 2747740731 is 1370477472.

It is an interprime number because it is at equal distance from previous prime (2747740729) and next prime (2747740733).

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

It is not a de Polignac number, because 2747740731 - 2¹ = 2747740729 is a prime.

It is a super-2 number, since 2×2747740731² = 15100158249592828722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2747740733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12377100 + ... + 12377321.

It is an arithmetic number, because the mean of its divisors is an integer number (470334018).

Almost surely, 2^2747740731 is an apocalyptic number.

2747740731 is a deficient number, since it is larger than the sum of its proper divisors (1014931413).

2747740731 is a wasteful number, since it uses less digits than its factorization.

2747740731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24754461.

The product of its (nonzero) digits is 230496, while the sum is 42.

The square root of 2747740731 is about 52418.8966976605. The cubic root of 2747740731 is about 1400.6358898721.

The spelling of 2747740731 in words is "two billion, seven hundred forty-seven million, seven hundred forty thousand, seven hundred thirty-one".