3764891 has 4 divisors (see below), whose sum is σ = 4054512. Its totient is φ = 3475272.

The previous prime is 3764879. The next prime is 3764899. The reversal of 3764891 is 1984673.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1984673 = 29 ⋅68437.

It is a cyclic number.

It is not a de Polignac number, because 3764891 - 2¹⁰ = 3763867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3764899) 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 3 ways as a sum of consecutive naturals, for example, 144791 + ... + 144816.

It is an arithmetic number, because the mean of its divisors is an integer number (1013628).

Almost surely, 2^3764891 is an apocalyptic number.

3764891 is a deficient number, since it is larger than the sum of its proper divisors (289621).

3764891 is a wasteful number, since it uses less digits than its factorization.

3764891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289620.

The product of its digits is 36288, while the sum is 38.

The square root of 3764891 is about 1940.3327034300. The cubic root of 3764891 is about 155.5669972499.

The spelling of 3764891 in words is "three million, seven hundred sixty-four thousand, eight hundred ninety-one".