6401355 has 8 divisors (see below), whose sum is σ = 10242192. Its totient is φ = 3414048.

The previous prime is 6401341. The next prime is 6401357. The reversal of 6401355 is 5531046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6401355 - 2⁹ = 6400843 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6401357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213364 + ... + 213393.

It is an arithmetic number, because the mean of its divisors is an integer number (1280274).

Almost surely, 2^6401355 is an apocalyptic number.

6401355 is a deficient number, since it is larger than the sum of its proper divisors (3840837).

6401355 is a wasteful number, since it uses less digits than its factorization.

6401355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426765.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 6401355 is about 2530.0899193507. The cubic root of 6401355 is about 185.6766552384.

The spelling of 6401355 in words is "six million, four hundred one thousand, three hundred fifty-five".