427923943 has 2 divisors, whose sum is σ = 427923944. Its totient is φ = 427923942.

The previous prime is 427923889. The next prime is 427924037. The reversal of 427923943 is 349329724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427923943 - 2¹³ = 427915751 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 427923943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427923343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213961971 + 213961972.

It is an arithmetic number, because the mean of its divisors is an integer number (213961972).

Almost surely, 2^427923943 is an apocalyptic number.

427923943 is a deficient number, since it is larger than the sum of its proper divisors (1).

427923943 is an equidigital number, since it uses as much as digits as its factorization.

427923943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 427923943 is about 20686.3226069787. The cubic root of 427923943 is about 753.5675619102.

The spelling of 427923943 in words is "four hundred twenty-seven million, nine hundred twenty-three thousand, nine hundred forty-three".