3730381 has 2 divisors, whose sum is σ = 3730382. Its totient is φ = 3730380.

The previous prime is 3730367. The next prime is 3730387. The reversal of 3730381 is 1830373.

3730381 is nontrivially palindromic in base 9.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1932100 + 1798281 = 1390^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 3730381 - 2¹³ = 3722189 is a prime.

It is a super-2 number, since 2×3730381² = 27831484810322, which contains 22 as substring.

3730381 is a lucky number.

It is equal to p₂₆₅₄₃₅ and since 3730381 and 265435 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3730387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1865190 + 1865191.

It is an arithmetic number, because the mean of its divisors is an integer number (1865191).

Almost surely, 2^3730381 is an apocalyptic number.

It is an amenable number.

3730381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3730381 is an equidigital number, since it uses as much as digits as its factorization.

3730381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3730381 is about 1931.4194262252. The cubic root of 3730381 is about 155.0902145652.

The spelling of 3730381 in words is "three million, seven hundred thirty thousand, three hundred eighty-one".