3742891 has 2 divisors, whose sum is σ = 3742892. Its totient is φ = 3742890.

The previous prime is 3742877. The next prime is 3742919. The reversal of 3742891 is 1982473.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3742891 - 2⁹ = 3742379 is a prime.

It is not a weakly prime, because it can be changed into another prime (3742841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1871445 + 1871446.

It is an arithmetic number, because the mean of its divisors is an integer number (1871446).

Almost surely, 2^3742891 is an apocalyptic number.

3742891 is a deficient number, since it is larger than the sum of its proper divisors (1).

3742891 is an equidigital number, since it uses as much as digits as its factorization.

3742891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 3742891 is about 1934.6552664493. The cubic root of 3742891 is about 155.2633884573.

The spelling of 3742891 in words is "three million, seven hundred forty-two thousand, eight hundred ninety-one".