623953 has 8 divisors (see below), whose sum is σ = 687456. Its totient is φ = 561600.

The previous prime is 623947. The next prime is 623957. The reversal of 623953 is 359326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 623953 - 2¹³ = 615761 is a prime.

623953 is a lucky number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (623957) 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, 1225 + ... + 1657.

It is an arithmetic number, because the mean of its divisors is an integer number (85932).

2⁶²³⁹⁵³ is an apocalyptic number.

It is an amenable number.

623953 is a deficient number, since it is larger than the sum of its proper divisors (63503).

623953 is a wasteful number, since it uses less digits than its factorization.

623953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its digits is 4860, while the sum is 28.

The square root of 623953 is about 789.9069565461. The cubic root of 623953 is about 85.4510281211.

The spelling of 623953 in words is "six hundred twenty-three thousand, nine hundred fifty-three".