2706435721 has 8 divisors (see below), whose sum is σ = 2996542944. Its totient is φ = 2423673120.

The previous prime is 2706435713. The next prime is 2706435727. The reversal of 2706435721 is 1275346072.

It is a happy number.

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

It is not a de Polignac number, because 2706435721 - 2³ = 2706435713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2706435727) 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, 1835380 + ... + 1836853.

It is an arithmetic number, because the mean of its divisors is an integer number (374567868).

Almost surely, 2^2706435721 is an apocalyptic number.

It is an amenable number.

2706435721 is a deficient number, since it is larger than the sum of its proper divisors (290107223).

2706435721 is a wasteful number, since it uses less digits than its factorization.

2706435721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672311.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 2706435721 is about 52023.4151224235. The cubic root of 2706435721 is about 1393.5821414849.

The spelling of 2706435721 in words is "two billion, seven hundred six million, four hundred thirty-five thousand, seven hundred twenty-one".