623537 has 2 divisors, whose sum is σ = 623538. Its totient is φ = 623536.

The previous prime is 623531. The next prime is 623563. The reversal of 623537 is 735326.

It is an a-pointer prime, because the next prime (623563) can be obtained adding 623537 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564001 + 59536 = 751^2 + 244^2 .

It is a cyclic number.

It is not a de Polignac number, because 623537 - 2⁴ = 623521 is a prime.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 623537.

It is not a weakly prime, because it can be changed into another prime (623531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311768 + 311769.

It is an arithmetic number, because the mean of its divisors is an integer number (311769).

2⁶²³⁵³⁷ is an apocalyptic number.

It is an amenable number.

623537 is a deficient number, since it is larger than the sum of its proper divisors (1).

623537 is an equidigital number, since it uses as much as digits as its factorization.

623537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 26.

The square root of 623537 is about 789.6435904888. The cubic root of 623537 is about 85.4320333514.

The spelling of 623537 in words is "six hundred twenty-three thousand, five hundred thirty-seven".