406747727 has 4 divisors (see below), whose sum is σ = 407821320. Its totient is φ = 405674136.

The previous prime is 406747717. The next prime is 406747787. The reversal of 406747727 is 727747604.

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 406747727 - 2²² = 402553423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406747717) 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, 536228 + ... + 536985.

It is an arithmetic number, because the mean of its divisors is an integer number (101955330).

Almost surely, 2^406747727 is an apocalyptic number.

406747727 is a deficient number, since it is larger than the sum of its proper divisors (1073593).

406747727 is a wasteful number, since it uses less digits than its factorization.

406747727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073592.

The product of its (nonzero) digits is 460992, while the sum is 44.

The square root of 406747727 is about 20167.9876784968. The cubic root of 406747727 is about 740.9263581298.

The spelling of 406747727 in words is "four hundred six million, seven hundred forty-seven thousand, seven hundred twenty-seven".