6403762947 has 4 divisors (see below), whose sum is σ = 8538350600. Its totient is φ = 4269175296.

The previous prime is 6403762931. The next prime is 6403762951. The reversal of 6403762947 is 7492673046.

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

It is not a de Polignac number, because 6403762947 - 2⁴ = 6403762931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6403762896 and 6403762905.

It is not an unprimeable number, because it can be changed into a prime (6403762957) 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, 1067293822 + ... + 1067293827.

It is an arithmetic number, because the mean of its divisors is an integer number (2134587650).

Almost surely, 2^6403762947 is an apocalyptic number.

6403762947 is a deficient number, since it is larger than the sum of its proper divisors (2134587653).

6403762947 is a wasteful number, since it uses less digits than its factorization.

6403762947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134587652.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The square root of 6403762947 is about 80023.5149627908. The cubic root of 6403762947 is about 1856.9993382530. Note that the first 3 decimals are identical.

The spelling of 6403762947 in words is "six billion, four hundred three million, seven hundred sixty-two thousand, nine hundred forty-seven".