3972858855 has 32 divisors (see below), whose sum is σ = 7270385664. Its totient is φ = 1814731776.

The previous prime is 3972858823. The next prime is 3972858863. The reversal of 3972858855 is 5588582793.

3972858855 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3972858855 - 2⁵ = 3972858823 is a prime.

It is a super-2 number, since 2×3972858855² = 31567214963503822050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125079 + ... + 153591.

It is an arithmetic number, because the mean of its divisors is an integer number (227199552).

Almost surely, 2^3972858855 is an apocalyptic number.

3972858855 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3972858855 is a deficient number, since it is larger than the sum of its proper divisors (3297526809).

3972858855 is a wasteful number, since it uses less digits than its factorization.

3972858855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29855.

The product of its digits is 24192000, while the sum is 60.

The square root of 3972858855 is about 63030.6183929683. The cubic root of 3972858855 is about 1583.8025772502.

The spelling of 3972858855 in words is "three billion, nine hundred seventy-two million, eight hundred fifty-eight thousand, eight hundred fifty-five".