3997401755 has 16 divisors (see below), whose sum is σ = 4857352704. Its totient is φ = 3157854720.

The previous prime is 3997401739. The next prime is 3997401763. The reversal of 3997401755 is 5571047993.

3997401755 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 3997401755 - 2⁴ = 3997401739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115559 + ... + 146111.

It is an arithmetic number, because the mean of its divisors is an integer number (303584544).

Almost surely, 2^3997401755 is an apocalyptic number.

3997401755 is a deficient number, since it is larger than the sum of its proper divisors (859950949).

3997401755 is a wasteful number, since it uses less digits than its factorization.

3997401755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30886.

The product of its (nonzero) digits is 1190700, while the sum is 50.

The square root of 3997401755 is about 63225.0089363378. The cubic root of 3997401755 is about 1587.0572727851.

The spelling of 3997401755 in words is "three billion, nine hundred ninety-seven million, four hundred one thousand, seven hundred fifty-five".