3749987506 has 16 divisors (see below), whose sum is σ = 5840602200. Its totient is φ = 1803601408.

The previous prime is 3749987471. The next prime is 3749987513. The reversal of 3749987506 is 6057899473.

It can be written as a sum of positive squares in 4 ways, for example, as 3316723281 + 433264225 = 57591^2 + 20815^2 .

It is a super-3 number, since 3×3749987506³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104575 + ... + 135778.

Almost surely, 2^3749987506 is an apocalyptic number.

3749987506 is a deficient number, since it is larger than the sum of its proper divisors (2090614694).

3749987506 is a wasteful number, since it uses less digits than its factorization.

3749987506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240653.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The square root of 3749987506 is about 61237.1415564117. The cubic root of 3749987506 is about 1553.6145275633.

The spelling of 3749987506 in words is "three billion, seven hundred forty-nine million, nine hundred eighty-seven thousand, five hundred six".