623946 has 8 divisors (see below), whose sum is σ = 1247904. Its totient is φ = 207980.

The previous prime is 623933. The next prime is 623947. The reversal of 623946 is 649326.

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

623946 is an admirable number.

It is a super-2 number, since 2×623946² = 778617221832, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6³ + 2¹⁵ + 9⁵ + 3¹² + 4⁴ + 6³ .

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (623947) 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, 51990 + ... + 52001.

It is an arithmetic number, because the mean of its divisors is an integer number (155988).

2⁶²³⁹⁴⁶ is an apocalyptic number.

623946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623946 is a wasteful number, since it uses less digits than its factorization.

623946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103996.

The product of its digits is 7776, while the sum is 30.

The square root of 623946 is about 789.9025256321. The cubic root of 623946 is about 85.4507085675.

The spelling of 623946 in words is "six hundred twenty-three thousand, nine hundred forty-six".