3694727920 has 80 divisors (see below), whose sum is σ = 9279843552. Its totient is φ = 1359959040.

The previous prime is 3694727909. The next prime is 3694727923. The reversal of 3694727920 is 297274963.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3694727923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338874 + ... + 349606.

Almost surely, 2^3694727920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3694727920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4639921776).

3694727920 is an abundant number, since it is smaller than the sum of its proper divisors (5585115632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3694727920 is a wasteful number, since it uses less digits than its factorization.

3694727920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090 (or 11084 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 49.

The square root of 3694727920 is about 60784.2736240222. The cubic root of 3694727920 is about 1545.9454099269.

The spelling of 3694727920 in words is "three billion, six hundred ninety-four million, seven hundred twenty-seven thousand, nine hundred twenty".