3750391 has 4 divisors (see below), whose sum is σ = 3947800. Its totient is φ = 3552984.

The previous prime is 3750389. The next prime is 3750407. The reversal of 3750391 is 1930573.

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 3750391 - 2¹ = 3750389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3750301) 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, 98676 + ... + 98713.

It is an arithmetic number, because the mean of its divisors is an integer number (986950).

Almost surely, 2^3750391 is an apocalyptic number.

3750391 is a deficient number, since it is larger than the sum of its proper divisors (197409).

3750391 is a wasteful number, since it uses less digits than its factorization.

3750391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197408.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 3750391 is about 1936.5926262382. The cubic root of 3750391 is about 155.3670247896.

The spelling of 3750391 in words is "three million, seven hundred fifty thousand, three hundred ninety-one".