400101727 has 4 divisors (see below), whose sum is σ = 400168216. Its totient is φ = 400035240.

The previous prime is 400101707. The next prime is 400101763. The reversal of 400101727 is 727101004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400101727 - 2²⁷ = 265883999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400101698 and 400101707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400101707) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23208 + ... + 36589.

It is an arithmetic number, because the mean of its divisors is an integer number (100042054).

Almost surely, 2^400101727 is an apocalyptic number.

400101727 is a deficient number, since it is larger than the sum of its proper divisors (66489).

400101727 is an equidigital number, since it uses as much as digits as its factorization.

400101727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66488.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 400101727 is about 20002.5430133271. The cubic root of 400101727 is about 736.8687553459.

The spelling of 400101727 in words is "four hundred million, one hundred one thousand, seven hundred twenty-seven".