6400101 has 4 divisors (see below), whose sum is σ = 8533472. Its totient is φ = 4266732.

The previous prime is 6400099. The next prime is 6400117. The reversal of 6400101 is 1010046.

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.

It is not a de Polignac number, because 6400101 - 2¹ = 6400099 is a prime.

It is a super-2 number, since 2×6400101² = 81922585620402, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066681 + ... + 1066686.

It is an arithmetic number, because the mean of its divisors is an integer number (2133368).

Almost surely, 2^6400101 is an apocalyptic number.

It is an amenable number.

6400101 is a deficient number, since it is larger than the sum of its proper divisors (2133371).

6400101 is a wasteful number, since it uses less digits than its factorization.

6400101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133370.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 6400101 is about 2529.8420899337. The cubic root of 6400101 is about 185.6645300070.

Adding to 6400101 its reverse (1010046), we get a palindrome (7410147).

The spelling of 6400101 in words is "six million, four hundred thousand, one hundred one".