3952643854 has 16 divisors (see below), whose sum is σ = 6309605808. Its totient is φ = 1850622592.

The previous prime is 3952643819. The next prime is 3952643861. The reversal of 3952643854 is 4583462593.

It is a junction number, because it is equal to n+sod(n) for n = 3952643798 and 3952643807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288364 + ... + 301759.

It is an arithmetic number, because the mean of its divisors is an integer number (394350363).

Almost surely, 2^3952643854 is an apocalyptic number.

3952643854 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3952643854 is a deficient number, since it is larger than the sum of its proper divisors (2356961954).

3952643854 is a wasteful number, since it uses less digits than its factorization.

3952643854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590339.

The product of its digits is 3110400, while the sum is 49.

The square root of 3952643854 is about 62870.0553045725. The cubic root of 3952643854 is about 1581.1117334584. Note that the first 3 decimals are identical.

The spelling of 3952643854 in words is "three billion, nine hundred fifty-two million, six hundred forty-three thousand, eight hundred fifty-four".