3742947 has 12 divisors (see below), whose sum is σ = 5822544. Its totient is φ = 2303280.

The previous prime is 3742933. The next prime is 3742961. The reversal of 3742947 is 7492473.

It is an interprime number because it is at equal distance from previous prime (3742933) and next prime (3742961).

It is not a de Polignac number, because 3742947 - 2¹⁹ = 3218659 is a prime.

It is a super-3 number, since 3×3742947³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3742987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15879 + ... + 16112.

It is an arithmetic number, because the mean of its divisors is an integer number (485212).

Almost surely, 2^3742947 is an apocalyptic number.

3742947 is a deficient number, since it is larger than the sum of its proper divisors (2079597).

3742947 is a wasteful number, since it uses less digits than its factorization.

3742947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32010 (or 32007 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 3742947 is about 1934.6697392578. The cubic root of 3742947 is about 155.2641627880.

It can be divided in two parts, 374 and 2947, that added together give a triangular number (3321 = T₈₁).

The spelling of 3742947 in words is "three million, seven hundred forty-two thousand, nine hundred forty-seven".