427367391 has 16 divisors (see below), whose sum is σ = 622702080. Its totient is φ = 258561920.

The previous prime is 427367377. The next prime is 427367401. The reversal of 427367391 is 193763724.

It is a cyclic number.

It is not a de Polignac number, because 427367391 - 2¹¹ = 427365343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427367321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8650 + ... + 30488.

It is an arithmetic number, because the mean of its divisors is an integer number (38918880).

Almost surely, 2^427367391 is an apocalyptic number.

427367391 is a deficient number, since it is larger than the sum of its proper divisors (195334689).

427367391 is a wasteful number, since it uses less digits than its factorization.

427367391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22446.

The product of its digits is 190512, while the sum is 42.

The square root of 427367391 is about 20672.8660567421. The cubic root of 427367391 is about 753.2407269715.

The spelling of 427367391 in words is "four hundred twenty-seven million, three hundred sixty-seven thousand, three hundred ninety-one".