3756021 has 8 divisors (see below), whose sum is σ = 5055264. Its totient is φ = 2480400.

The previous prime is 3756019. The next prime is 3756023. The reversal of 3756021 is 1206573.

It is an interprime number because it is at equal distance from previous prime (3756019) and next prime (3756023).

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

It is not a de Polignac number, because 3756021 - 2¹ = 3756019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3755982 and 3756000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3756023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5530 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (631908).

Almost surely, 2^3756021 is an apocalyptic number.

It is an amenable number.

3756021 is a deficient number, since it is larger than the sum of its proper divisors (1299243).

3756021 is a wasteful number, since it uses less digits than its factorization.

3756021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11811.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 3756021 is about 1938.0456650967. The cubic root of 3756021 is about 155.4447303776. Note that the first 3 decimals are identical.

The spelling of 3756021 in words is "three million, seven hundred fifty-six thousand, twenty-one".