3756491 has 2 divisors, whose sum is σ = 3756492. Its totient is φ = 3756490.

The previous prime is 3756479. The next prime is 3756503. The reversal of 3756491 is 1946573.

It is a balanced prime because it is at equal distance from previous prime (3756479) and next prime (3756503).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3756491 is a prime.

It is a super-2 number, since 2×3756491² = 28222449266162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3756421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1878245 + 1878246.

It is an arithmetic number, because the mean of its divisors is an integer number (1878246).

Almost surely, 2^3756491 is an apocalyptic number.

3756491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3756491 is an equidigital number, since it uses as much as digits as its factorization.

3756491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 3756491 is about 1938.1669174764. The cubic root of 3756491 is about 155.4512138323.

The spelling of 3756491 in words is "three million, seven hundred fifty-six thousand, four hundred ninety-one".