3658743 has 32 divisors (see below), whose sum is σ = 6021120. Its totient is φ = 2177280.

The previous prime is 3658729. The next prime is 3658747. The reversal of 3658743 is 3478563.

It is a happy number.

3658743 is a `hidden beast` number, since 36 + 587 + 43 = 666.

It is not a de Polignac number, because 3658743 - 2¹² = 3654647 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3658698 and 3658707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3658747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28746 + ... + 28872.

It is an arithmetic number, because the mean of its divisors is an integer number (188160).

Almost surely, 2^3658743 is an apocalyptic number.

3658743 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3658743 is a deficient number, since it is larger than the sum of its proper divisors (2362377).

3658743 is a wasteful number, since it uses less digits than its factorization.

3658743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 238 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3658743 is about 1912.7840965462. The cubic root of 3658743 is about 154.0910099032.

The spelling of 3658743 in words is "three million, six hundred fifty-eight thousand, seven hundred forty-three".