423619 has 8 divisors (see below), whose sum is σ = 491360. Its totient is φ = 357696.

The previous prime is 423617. The next prime is 423649. The reversal of 423619 is 916324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423619 - 2¹ = 423617 is a prime.

It is a super-2 number, since 2×423619² = 358906114322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423593 and 423602.

It is not an unprimeable number, because it can be changed into a prime (423617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97 + ... + 925.

It is an arithmetic number, because the mean of its divisors is an integer number (61420).

2⁴²³⁶¹⁹ is an apocalyptic number.

423619 is a deficient number, since it is larger than the sum of its proper divisors (67741).

423619 is an equidigital number, since it uses as much as digits as its factorization.

423619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909.

The product of its digits is 1296, while the sum is 25.

The square root of 423619 is about 650.8602000430. The cubic root of 423619 is about 75.1032060631.

The spelling of 423619 in words is "four hundred twenty-three thousand, six hundred nineteen".