2731087406 has 8 divisors (see below), whose sum is σ = 4097681904. Its totient is φ = 1365193440.

The previous prime is 2731087399. The next prime is 2731087427. The reversal of 2731087406 is 6047801372.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2731087406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165275 + ... + 181046.

It is an arithmetic number, because the mean of its divisors is an integer number (512210238).

Almost surely, 2^2731087406 is an apocalyptic number.

2731087406 is a deficient number, since it is larger than the sum of its proper divisors (1366594498).

2731087406 is a wasteful number, since it uses less digits than its factorization.

2731087406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350266.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2731087406 is about 52259.8067926011. The cubic root of 2731087406 is about 1397.8005269349.

Adding to 2731087406 its reverse (6047801372), we get a palindrome (8778888778).

The spelling of 2731087406 in words is "two billion, seven hundred thirty-one million, eighty-seven thousand, four hundred six".