1000002623 has 16 divisors (see below), whose sum is σ = 1077840000. Its totient is φ = 924908832.

The previous prime is 1000002607. The next prime is 1000002631. The reversal of 1000002623 is 3262000001.

It is a cyclic number.

It is not a de Polignac number, because 1000002623 - 2⁴ = 1000002607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000002598 and 1000002607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000002823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164036 + ... + 170022.

It is an arithmetic number, because the mean of its divisors is an integer number (67365000).

Almost surely, 2^1000002623 is an apocalyptic number.

1000002623 is a deficient number, since it is larger than the sum of its proper divisors (77837377).

1000002623 is a wasteful number, since it uses less digits than its factorization.

1000002623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6214.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1000002623 is about 31622.8180749281. The cubic root of 1000002623 is about 1000.0008743326. Note that the first 3 decimals are identical.

Adding to 1000002623 its reverse (3262000001), we get a palindrome (4262002624).

The spelling of 1000002623 in words is "one billion, two thousand, six hundred twenty-three".