623742 has 16 divisors (see below), whose sum is σ = 1425792. Its totient is φ = 178200.

The previous prime is 623729. The next prime is 623743. The reversal of 623742 is 247326.

623742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 6⁶ + 2¹⁵ + 7³ + 3⁹ + 4 + 2¹⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623743) 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, 7384 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (89112).

2⁶²³⁷⁴² is an apocalyptic number.

623742 is an abundant number, since it is smaller than the sum of its proper divisors (802050).

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

623742 is a wasteful number, since it uses less digits than its factorization.

623742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14863.

The product of its digits is 2016, while the sum is 24.

The square root of 623742 is about 789.7733852188. The cubic root of 623742 is about 85.4413948102.

The spelling of 623742 in words is "six hundred twenty-three thousand, seven hundred forty-two".