1038623 has 2 divisors, whose sum is σ = 1038624. Its totient is φ = 1038622.

The previous prime is 1038619. The next prime is 1038629. The reversal of 1038623 is 3268301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1038623 - 2² = 1038619 is a prime.

It is a super-2 number, since 2×1038623² = 2157475472258, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1038629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519311 + 519312.

It is an arithmetic number, because the mean of its divisors is an integer number (519312).

2^1038623 is an apocalyptic number.

1038623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038623 is an equidigital number, since it uses as much as digits as its factorization.

1038623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1038623 is about 1019.1285493008. The cubic root of 1038623 is about 101.2712052319.

It can be divided in two parts, 1038 and 623, that added together give a palindrome (1661).

The spelling of 1038623 in words is "one million, thirty-eight thousand, six hundred twenty-three".