623354 has 4 divisors (see below), whose sum is σ = 935034.
Its totient is φ = 311676.
The previous prime is 623353. The next prime is 623383. The reversal of 623354 is 453326.
623354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453326 = 2 ⋅226663.
It can be written as a sum of positive squares in only one way, i.e., 388129 + 235225 = 623^2 + 485^2
It is not an unprimeable number, because it can be changed into a prime (623351) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155837 + ... + 155840.
2623354 is an apocalyptic number.
623354 is a deficient number, since it is larger than the sum of its proper divisors (311680).
623354 is a wasteful number, since it uses less digits than its factorization.
623354 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 311679.
The product of its digits is 2160, while the sum is 23.
The square root of 623354 is about 789.5277069236.
The cubic root of 623354 is about 85.4236748034.
The spelling of 623354 in words is "six hundred twenty-three thousand, three hundred fifty-four".