13750004 has 6 divisors (see below), whose sum is σ = 24062514. Its totient is φ = 6875000.

The previous prime is 13749997. The next prime is 13750043. The reversal of 13750004 is 40005731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8236900 + 5513104 = 2870^2 + 2348^2 .

It is a super-2 number, since 2×13750004² = 378125220000032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1718747 + ... + 1718754.

It is an arithmetic number, because the mean of its divisors is an integer number (4010419).

Almost surely, 2^13750004 is an apocalyptic number.

It is an amenable number.

13750004 is a deficient number, since it is larger than the sum of its proper divisors (10312510).

13750004 is a wasteful number, since it uses less digits than its factorization.

13750004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437505 (or 3437503 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 13750004 is about 3708.0997829077. The cubic root of 13750004 is about 239.5710160843.

Adding to 13750004 its reverse (40005731), we get a palindrome (53755735).

The spelling of 13750004 in words is "thirteen million, seven hundred fifty thousand, four".