3500472643 has 4 divisors (see below), whose sum is σ = 3501268848. Its totient is φ = 3499676440.

The previous prime is 3500472607. The next prime is 3500472683. The reversal of 3500472643 is 3462740053.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3500472643 - 2²⁹ = 2963601731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3500472599 and 3500472608.

It is not an unprimeable number, because it can be changed into a prime (3500472683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391471 + ... + 400312.

It is an arithmetic number, because the mean of its divisors is an integer number (875317212).

Almost surely, 2^3500472643 is an apocalyptic number.

3500472643 is a deficient number, since it is larger than the sum of its proper divisors (796205).

3500472643 is an equidigital number, since it uses as much as digits as its factorization.

3500472643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796204.

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 3500472643 is about 59164.7922585722. The cubic root of 3500472643 is about 1518.3628267912.

The spelling of 3500472643 in words is "three billion, five hundred million, four hundred seventy-two thousand, six hundred forty-three".