3994634553 has 16 divisors (see below), whose sum is σ = 6555298176. Its totient is φ = 2107059840.

The previous prime is 3994634521. The next prime is 3994634557. The reversal of 3994634553 is 3554364993.

3994634553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3994634553 - 2⁵ = 3994634521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3994634496 and 3994634505.

It is not an unprimeable number, because it can be changed into a prime (3994634557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7315908 + ... + 7316453.

It is an arithmetic number, because the mean of its divisors is an integer number (409706136).

Almost surely, 2^3994634553 is an apocalyptic number.

It is an amenable number.

3994634553 is a deficient number, since it is larger than the sum of its proper divisors (2560663623).

3994634553 is a wasteful number, since it uses less digits than its factorization.

3994634553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14632384.

The product of its digits is 5248800, while the sum is 51.

The square root of 3994634553 is about 63203.1213865265. The cubic root of 3994634553 is about 1586.6909746990.

The spelling of 3994634553 in words is "three billion, nine hundred ninety-four million, six hundred thirty-four thousand, five hundred fifty-three".