1013623 has 8 divisors (see below), whose sum is σ = 1103648. Its totient is φ = 925344.

The previous prime is 1013609. The next prime is 1013627. The reversal of 1013623 is 3263101.

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 1013623 - 2¹⁷ = 882551 is a prime.

It is a super-2 number, since 2×1013623² = 2054863172258, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1013597 and 1013606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961 + ... + 1717.

It is an arithmetic number, because the mean of its divisors is an integer number (137956).

2^1013623 is an apocalyptic number.

1013623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1013623 is a deficient number, since it is larger than the sum of its proper divisors (90025).

1013623 is a wasteful number, since it uses less digits than its factorization.

1013623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1013623 is about 1006.7884584162. The cubic root of 1013623 is about 100.4520533980.

Adding to 1013623 its reverse (3263101), we get a palindrome (4276724).

The spelling of 1013623 in words is "one million, thirteen thousand, six hundred twenty-three".