3646734747 has 8 divisors (see below), whose sum is σ = 4965766656. Its totient is φ = 2379429672.

The previous prime is 3646734737. The next prime is 3646734761. The reversal of 3646734747 is 7474376463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3646734747 - 2¹² = 3646730651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3646734747.

It is not an unprimeable number, because it can be changed into a prime (3646734737) 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 7 ways as a sum of consecutive naturals, for example, 12931543 + ... + 12931824.

It is an arithmetic number, because the mean of its divisors is an integer number (620720832).

Almost surely, 2^3646734747 is an apocalyptic number.

3646734747 is a deficient number, since it is larger than the sum of its proper divisors (1319031909).

3646734747 is a wasteful number, since it uses less digits than its factorization.

3646734747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25863417.

The product of its digits is 7112448, while the sum is 51.

The square root of 3646734747 is about 60388.2003954415. The cubic root of 3646734747 is about 1539.2224594310. Note that the first 3 decimals are identical.

The spelling of 3646734747 in words is "three billion, six hundred forty-six million, seven hundred thirty-four thousand, seven hundred forty-seven".