3748919 has 4 divisors (see below), whose sum is σ = 3812520. Its totient is φ = 3685320.

The previous prime is 3748907. The next prime is 3748933. The reversal of 3748919 is 9198473.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3748919 - 2⁴ = 3748903 is a prime.

It is a super-2 number, since 2×3748919² = 28108787337122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3748939) 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, 31712 + ... + 31829.

It is an arithmetic number, because the mean of its divisors is an integer number (953130).

Almost surely, 2^3748919 is an apocalyptic number.

3748919 is a deficient number, since it is larger than the sum of its proper divisors (63601).

3748919 is an equidigital number, since it uses as much as digits as its factorization.

3748919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63600.

The product of its digits is 54432, while the sum is 41.

The square root of 3748919 is about 1936.2125399862. The cubic root of 3748919 is about 155.3466953370.

The spelling of 3748919 in words is "three million, seven hundred forty-eight thousand, nine hundred nineteen".