3742397 has 4 divisors (see below), whose sum is σ = 3962556. Its totient is φ = 3522240.

The previous prime is 3742391. The next prime is 3742451. The reversal of 3742397 is 7932473.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2328676 + 1413721 = 1526^2 + 1189^2 .

It is a cyclic number.

It is not a de Polignac number, because 3742397 - 2¹⁴ = 3726013 is a prime.

It is a super-3 number, since 3×3742397³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3742391) 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, 110054 + ... + 110087.

It is an arithmetic number, because the mean of its divisors is an integer number (990639).

Almost surely, 2^3742397 is an apocalyptic number.

It is an amenable number.

3742397 is a deficient number, since it is larger than the sum of its proper divisors (220159).

3742397 is a wasteful number, since it uses less digits than its factorization.

3742397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220158.

The product of its digits is 31752, while the sum is 35.

The square root of 3742397 is about 1934.5275909121. The cubic root of 3742397 is about 155.2565574196.

The spelling of 3742397 in words is "three million, seven hundred forty-two thousand, three hundred ninety-seven".