3687031404 has 72 divisors (see below), whose sum is σ = 10705094400. Its totient is φ = 1048129632.

The previous prime is 3687031333. The next prime is 3687031409. The reversal of 3687031404 is 4041307863.

It is a super-2 number, since 2×3687031404² = 27188401148164422432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3687031409) 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 23 ways as a sum of consecutive naturals, for example, 13387 + ... + 86909.

Almost surely, 2^3687031404 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 3687031404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5352547200).

3687031404 is an abundant number, since it is smaller than the sum of its proper divisors (7018062996).

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

3687031404 is a wasteful number, since it uses less digits than its factorization.

3687031404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73739 (or 73734 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 3687031404 is about 60720.9305264667. The cubic root of 3687031404 is about 1544.8712067836.

The spelling of 3687031404 in words is "three billion, six hundred eighty-seven million, thirty-one thousand, four hundred four".