2743021685 has 8 divisors (see below), whose sum is σ = 3296765016. Its totient is φ = 2190991360.

The previous prime is 2743021681. The next prime is 2743021747. The reversal of 2743021685 is 5861203472.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1052742916 + 1690278769 = 32446^2 + 41113^2 .

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

It is not a de Polignac number, because 2743021685 - 2² = 2743021681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2743021681) 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, 424724 + ... + 431133.

It is an arithmetic number, because the mean of its divisors is an integer number (412095627).

Almost surely, 2^2743021685 is an apocalyptic number.

It is an amenable number.

2743021685 is a deficient number, since it is larger than the sum of its proper divisors (553743331).

2743021685 is an equidigital number, since it uses as much as digits as its factorization.

2743021685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856503.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 2743021685 is about 52373.8645222978. The cubic root of 2743021685 is about 1399.8336001209.

The spelling of 2743021685 in words is "two billion, seven hundred forty-three million, twenty-one thousand, six hundred eighty-five".