3734688021 has 16 divisors (see below), whose sum is σ = 5039463936. Its totient is φ = 2459963376.

The previous prime is 3734688019. The next prime is 3734688091. The reversal of 3734688021 is 1208864373.

It is not a de Polignac number, because 3734688021 - 2¹ = 3734688019 is a prime.

It is a super-2 number, since 2×3734688021² = 27895789228401792882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3734688011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123246 + ... + 150528.

It is an arithmetic number, because the mean of its divisors is an integer number (314966496).

Almost surely, 2^3734688021 is an apocalyptic number.

It is an amenable number.

3734688021 is a deficient number, since it is larger than the sum of its proper divisors (1304775915).

3734688021 is a wasteful number, since it uses less digits than its factorization.

3734688021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27832.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 3734688021 is about 61112.0939012893. The cubic root of 3734688021 is about 1551.4987959657.

The spelling of 3734688021 in words is "three billion, seven hundred thirty-four million, six hundred eighty-eight thousand, twenty-one".