623497 has 4 divisors (see below), whose sum is σ = 712576. Its totient is φ = 534420.

The previous prime is 623477. The next prime is 623521. The reversal of 623497 is 794326.

623497 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623497 is a prime.

It is a d-powerful number, because it can be written as 6³ + 2¹⁵ + 4² + 3¹² + 9⁵ + 7 .

It is a Duffinian number.

623497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (623417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44529 + ... + 44542.

It is an arithmetic number, because the mean of its divisors is an integer number (178144).

2⁶²³⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

623497 is a deficient number, since it is larger than the sum of its proper divisors (89079).

623497 is an equidigital number, since it uses as much as digits as its factorization.

623497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89078.

The product of its digits is 9072, while the sum is 31.

The square root of 623497 is about 789.6182622002. The cubic root of 623497 is about 85.4302064861.

The spelling of 623497 in words is "six hundred twenty-three thousand, four hundred ninety-seven".