919427 has 2 divisors, whose sum is σ = 919428. Its totient is φ = 919426.

The previous prime is 919423. The next prime is 919447. The reversal of 919427 is 724919.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 919427 - 2² = 919423 is a prime.

It is equal to p₇₂₆₉₈ and since 919427 and 72698 have the same sum of digits, it is a Honaker prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 919393 and 919402.

It is not a weakly prime, because it can be changed into another prime (919421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459713 + 459714.

It is an arithmetic number, because the mean of its divisors is an integer number (459714).

2⁹¹⁹⁴²⁷ is an apocalyptic number.

919427 is a deficient number, since it is larger than the sum of its proper divisors (1).

919427 is an equidigital number, since it uses as much as digits as its factorization.

919427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 919427 is about 958.8675612409. The cubic root of 919427 is about 97.2386866387.

The spelling of 919427 in words is "nine hundred nineteen thousand, four hundred twenty-seven".