3729126847 has 4 divisors (see below), whose sum is σ = 3790260136. Its totient is φ = 3667993560.

The previous prime is 3729126811. The next prime is 3729126859. The reversal of 3729126847 is 7486219273.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3729126847 - 2⁷ = 3729126719 is a prime.

It is a super-2 number, since 2×3729126847² = 27812774082032322818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3729126847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3729126887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30566553 + ... + 30566674.

It is an arithmetic number, because the mean of its divisors is an integer number (947565034).

Almost surely, 2^3729126847 is an apocalyptic number.

3729126847 is a deficient number, since it is larger than the sum of its proper divisors (61133289).

3729126847 is an equidigital number, since it uses as much as digits as its factorization.

3729126847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61133288.

The product of its digits is 1016064, while the sum is 49.

The square root of 3729126847 is about 61066.5771678747. The cubic root of 3729126847 is about 1550.7283218881.

It can be divided in two parts, 372 and 9126847, that added together give a palindrome (9127219).

The spelling of 3729126847 in words is "three billion, seven hundred twenty-nine million, one hundred twenty-six thousand, eight hundred forty-seven".