3948704653 has 4 divisors (see below), whose sum is σ = 4120387488. Its totient is φ = 3777021820.

The previous prime is 3948704603. The next prime is 3948704687. The reversal of 3948704653 is 3564078493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3564078493 = 197 ⋅18091769.

It is a de Polignac number, because none of the positive numbers 2^k-3948704653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3948704597 and 3948704606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948704603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85841383 + ... + 85841428.

It is an arithmetic number, because the mean of its divisors is an integer number (1030096872).

Almost surely, 2^3948704653 is an apocalyptic number.

It is an amenable number.

3948704653 is a deficient number, since it is larger than the sum of its proper divisors (171682835).

3948704653 is a wasteful number, since it uses less digits than its factorization.

3948704653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171682834.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The square root of 3948704653 is about 62838.7193774666. The cubic root of 3948704653 is about 1580.5863140731.

The spelling of 3948704653 in words is "three billion, nine hundred forty-eight million, seven hundred four thousand, six hundred fifty-three".