3751966 has 4 divisors (see below), whose sum is σ = 5627952. Its totient is φ = 1875982.

The previous prime is 3751919. The next prime is 3752009. The reversal of 3751966 is 6691573.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6691573 = 7 ⋅955939.

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, 937990 + ... + 937993.

It is an arithmetic number, because the mean of its divisors is an integer number (1406988).

Almost surely, 2^3751966 is an apocalyptic number.

3751966 is a deficient number, since it is larger than the sum of its proper divisors (1875986).

3751966 is a wasteful number, since it uses less digits than its factorization.

3751966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875985.

The product of its digits is 34020, while the sum is 37.

The square root of 3751966 is about 1936.9992256065. Note that the first 3 decimals coincide. The cubic root of 3751966 is about 155.3887708615.

It can be divided in two parts, 37 and 51966, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 3751966 in words is "three million, seven hundred fifty-one thousand, nine hundred sixty-six".