1493623 has 2 divisors, whose sum is σ = 1493624. Its totient is φ = 1493622.

The previous prime is 1493621. The next prime is 1493633. The reversal of 1493623 is 3263941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1493623 - 2¹ = 1493621 is a prime.

It is a super-2 number, since 2×1493623² = 4461819332258, which contains 22 as substring.

Together with 1493621, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1493591 and 1493600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1493621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746811 + 746812.

It is an arithmetic number, because the mean of its divisors is an integer number (746812).

2^1493623 is an apocalyptic number.

1493623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493623 is an equidigital number, since it uses as much as digits as its factorization.

1493623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 1493623 is about 1222.1386991663. The cubic root of 1493623 is about 114.3089751017.

It can be divided in two parts, 1493 and 623, that added together give a square (2116 = 46²).

The spelling of 1493623 in words is "one million, four hundred ninety-three thousand, six hundred twenty-three".