3634993 has 2 divisors, whose sum is σ = 3634994. Its totient is φ = 3634992.

The previous prime is 3634963. The next prime is 3634999. The reversal of 3634993 is 3994363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3283344 + 351649 = 1812^2 + 593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3634993 is a prime.

It is a super-2 number, since 2×3634993² = 26426348220098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3634999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1817496 + 1817497.

It is an arithmetic number, because the mean of its divisors is an integer number (1817497).

Almost surely, 2^3634993 is an apocalyptic number.

It is an amenable number.

3634993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3634993 is an equidigital number, since it uses as much as digits as its factorization.

3634993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 37.

The square root of 3634993 is about 1906.5657607332. The cubic root of 3634993 is about 153.7568688407.

It can be divided in two parts, 363 and 4993, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 3634993 in words is "three million, six hundred thirty-four thousand, nine hundred ninety-three".