3700381 has 4 divisors (see below), whose sum is σ = 3735072. Its totient is φ = 3665692.

The previous prime is 3700369. The next prime is 3700387. The reversal of 3700381 is 1830073.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1830073 = 7 ⋅261439.

It is a cyclic number.

It is not a de Polignac number, because 3700381 - 2⁵ = 3700349 is a prime.

It is a super-2 number, since 2×3700381² = 27385639090322, which contains 22 as substring.

It is a Duffinian number.

3700381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3700387) 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, 17185 + ... + 17398.

It is an arithmetic number, because the mean of its divisors is an integer number (933768).

Almost surely, 2^3700381 is an apocalyptic number.

It is an amenable number.

3700381 is a deficient number, since it is larger than the sum of its proper divisors (34691).

3700381 is a wasteful number, since it uses less digits than its factorization.

3700381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34690.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 3700381 is about 1923.6374398519. The cubic root of 3700381 is about 154.6733460709.

The spelling of 3700381 in words is "three million, seven hundred thousand, three hundred eighty-one".