3547664394 has 32 divisors (see below), whose sum is σ = 7473047040. Its totient is φ = 1120563312.

The previous prime is 3547664381. The next prime is 3547664399. The reversal of 3547664394 is 4934667453.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3547664399) 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 15 ways as a sum of consecutive naturals, for example, 105364 + ... + 134895.

It is an arithmetic number, because the mean of its divisors is an integer number (233532720).

Almost surely, 2^3547664394 is an apocalyptic number.

3547664394 is an abundant number, since it is smaller than the sum of its proper divisors (3925382646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3547664394 is a wasteful number, since it uses less digits than its factorization.

3547664394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240394.

The product of its digits is 6531840, while the sum is 51.

The square root of 3547664394 is about 59562.2732440594. The cubic root of 3547664394 is about 1525.1556797443.

The spelling of 3547664394 in words is "three billion, five hundred forty-seven million, six hundred sixty-four thousand, three hundred ninety-four".