427749383 has 2 divisors, whose sum is σ = 427749384. Its totient is φ = 427749382.

The previous prime is 427749367. The next prime is 427749389. The reversal of 427749383 is 383947724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427749383 - 2⁴ = 427749367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427749389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213874691 + 213874692.

It is an arithmetic number, because the mean of its divisors is an integer number (213874692).

Almost surely, 2^427749383 is an apocalyptic number.

427749383 is a deficient number, since it is larger than the sum of its proper divisors (1).

427749383 is an equidigital number, since it uses as much as digits as its factorization.

427749383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The square root of 427749383 is about 20682.1029636737. The cubic root of 427749383 is about 753.4650821383.

The spelling of 427749383 in words is "four hundred twenty-seven million, seven hundred forty-nine thousand, three hundred eighty-three".