3728977693 has 48 divisors (see below), whose sum is σ = 4729037824. Its totient is φ = 2876497920.

The previous prime is 3728977691. The next prime is 3728977699. The reversal of 3728977693 is 3967798273.

It is not a de Polignac number, because 3728977693 - 2¹ = 3728977691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728977691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6082855 + ... + 6083467.

Almost surely, 2^3728977693 is an apocalyptic number.

It is an amenable number.

3728977693 is a deficient number, since it is larger than the sum of its proper divisors (1000060131).

3728977693 is a wasteful number, since it uses less digits than its factorization.

3728977693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 765 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 61.

The square root of 3728977693 is about 61065.3559147902. The cubic root of 3728977693 is about 1550.7076467698.

The spelling of 3728977693 in words is "three billion, seven hundred twenty-eight million, nine hundred seventy-seven thousand, six hundred ninety-three".