3750009 has 4 divisors (see below), whose sum is σ = 5000016. Its totient is φ = 2500004.

The previous prime is 3750001. The next prime is 3750017. The reversal of 3750009 is 9000573.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3750001) and next prime (3750017).

It is a cyclic number.

It is not a de Polignac number, because 3750009 - 2³ = 3750001 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3750001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624999 + ... + 625004.

It is an arithmetic number, because the mean of its divisors is an integer number (1250004).

Almost surely, 2^3750009 is an apocalyptic number.

It is an amenable number.

3750009 is a deficient number, since it is larger than the sum of its proper divisors (1250007).

3750009 is a wasteful number, since it uses less digits than its factorization.

3750009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250006.

The product of its (nonzero) digits is 945, while the sum is 24.

The square root of 3750009 is about 1936.4939968923. The cubic root of 3750009 is about 155.3617495869.

It can be divided in two parts, 375000 and 9, that multiplied together give a cube (3375000 = 150³).

The spelling of 3750009 in words is "three million, seven hundred fifty thousand, nine".