1623463 has 2 divisors, whose sum is σ = 1623464. Its totient is φ = 1623462.

The previous prime is 1623451. The next prime is 1623467. The reversal of 1623463 is 3643261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1623463 - 2⁵ = 1623431 is a prime.

It is a super-2 number, since 2×1623463² = 5271264224738, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 6⁴ + 2⁷ + 3⁹ + 4⁴ + 6⁵ + 3¹³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623467) 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 as a sum of consecutive naturals, namely, 811731 + 811732.

It is an arithmetic number, because the mean of its divisors is an integer number (811732).

2^1623463 is an apocalyptic number.

1623463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623463 is an equidigital number, since it uses as much as digits as its factorization.

1623463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

The square root of 1623463 is about 1274.1518747779. The cubic root of 1623463 is about 117.5296560123.

The spelling of 1623463 in words is "one million, six hundred twenty-three thousand, four hundred sixty-three".