3690437 has 2 divisors, whose sum is σ = 3690438. Its totient is φ = 3690436.

The previous prime is 3690397. The next prime is 3690473. The reversal of 3690437 is 7340963.

Together with next prime (3690473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3690241 + 196 = 1921^2 + 14^2 .

It is a cyclic number.

It is not a de Polignac number, because 3690437 - 2¹² = 3686341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3690497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1845218 + 1845219.

It is an arithmetic number, because the mean of its divisors is an integer number (1845219).

Almost surely, 2^3690437 is an apocalyptic number.

It is an amenable number.

3690437 is a deficient number, since it is larger than the sum of its proper divisors (1).

3690437 is an equidigital number, since it uses as much as digits as its factorization.

3690437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 3690437 is about 1921.0510144189. The cubic root of 3690437 is about 154.5346710207.

The spelling of 3690437 in words is "three million, six hundred ninety thousand, four hundred thirty-seven".