2873731 has 32 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 2073600.

The previous prime is 2873729. The next prime is 2873743. The reversal of 2873731 is 1373782.

2873731 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a 10-Lehmer number, since φ(2873731) divides (2873731-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 2873731 - 2¹ = 2873729 is a prime.

It is a super-2 number, since 2×2873731² = 16516659720722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

2873731 is strictly pandigital in base 8.

2873731 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2873693 and 2873702.

It is not an unprimeable number, because it can be changed into a prime (2873701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70071 + ... + 70111.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^2873731 is an apocalyptic number.

2873731 is a deficient number, since it is larger than the sum of its proper divisors (996989).

2873731 is a wasteful number, since it uses less digits than its factorization.

2873731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115.

The product of its digits is 7056, while the sum is 31.

The square root of 2873731 is about 1695.2082467945. The cubic root of 2873731 is about 142.1724249445.

The spelling of 2873731 in words is "two million, eight hundred seventy-three thousand, seven hundred thirty-one".