3537381 has 4 divisors (see below), whose sum is σ = 4716512. Its totient is φ = 2358252.

The previous prime is 3537337. The next prime is 3537407. The reversal of 3537381 is 1837353.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3537381 - 2¹⁷ = 3406309 is a prime.

It is a super-2 number, since 2×3537381² = 25026128678322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3537181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589561 + ... + 589566.

It is an arithmetic number, because the mean of its divisors is an integer number (1179128).

Almost surely, 2^3537381 is an apocalyptic number.

It is an amenable number.

3537381 is a deficient number, since it is larger than the sum of its proper divisors (1179131).

3537381 is a wasteful number, since it uses less digits than its factorization.

3537381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179130.

The product of its digits is 7560, while the sum is 30.

The square root of 3537381 is about 1880.7926520486. The cubic root of 3537381 is about 152.3680628994.

The spelling of 3537381 in words is "three million, five hundred thirty-seven thousand, three hundred eighty-one".