623349 has 8 divisors (see below), whose sum is σ = 923520. Its totient is φ = 415548.

The previous prime is 623341. The next prime is 623351. The reversal of 623349 is 943326.

623349 is a `hidden beast` number, since 623 + 34 + 9 = 666.

623349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 623349 - 2³ = 623341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 23087 = 623349 / (6 + 2 + 3 + 3 + 4 + 9).

It is a d-powerful number, because it can be written as 6 + 2¹⁵ + 3¹⁰ + 3¹² + 4 + 9² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623341) 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, 11517 + ... + 11570.

It is an arithmetic number, because the mean of its divisors is an integer number (115440).

2⁶²³³⁴⁹ is an apocalyptic number.

It is an amenable number.

623349 is a deficient number, since it is larger than the sum of its proper divisors (300171).

623349 is a wasteful number, since it uses less digits than its factorization.

623349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23096 (or 23090 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 623349 is about 789.5245404672. The cubic root of 623349 is about 85.4234464048.

The spelling of 623349 in words is "six hundred twenty-three thousand, three hundred forty-nine".