3746991 has 8 divisors (see below), whose sum is σ = 5008000. Its totient is φ = 2491992.

The previous prime is 3746983. The next prime is 3747019. The reversal of 3746991 is 1996473.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3746991 - 2³ = 3746983 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 (3746921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246 + ... + 2748.

It is an arithmetic number, because the mean of its divisors is an integer number (626000).

Almost surely, 2^3746991 is an apocalyptic number.

3746991 is a deficient number, since it is larger than the sum of its proper divisors (1261009).

3746991 is a wasteful number, since it uses less digits than its factorization.

3746991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005.

The product of its digits is 40824, while the sum is 39.

The square root of 3746991 is about 1935.7145967317. The cubic root of 3746991 is about 155.3200601224.

The spelling of 3746991 in words is "three million, seven hundred forty-six thousand, nine hundred ninety-one".