3651974 has 16 divisors (see below), whose sum is σ = 5959008. Its totient is φ = 1671552.

The previous prime is 3651959. The next prime is 3651979. The reversal of 3651974 is 4791563.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651979) 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 7 ways as a sum of consecutive naturals, for example, 194 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (372438).

Almost surely, 2^3651974 is an apocalyptic number.

3651974 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3651974 is a deficient number, since it is larger than the sum of its proper divisors (2307034).

3651974 is a wasteful number, since it uses less digits than its factorization.

3651974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959.

The product of its digits is 22680, while the sum is 35.

The square root of 3651974 is about 1911.0138670350. The cubic root of 3651974 is about 153.9959238815.

The spelling of 3651974 in words is "three million, six hundred fifty-one thousand, nine hundred seventy-four".