622738 has 8 divisors (see below), whose sum is σ = 943488. Its totient is φ = 308244.

The previous prime is 622729. The next prime is 622751. The reversal of 622738 is 837226.

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

It is a d-powerful number, because it can be written as 6⁶ + 2⁵ + 7⁵ + 2¹⁹ + 3⁷ + 8⁵ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1306 + ... + 1717.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2⁶²²⁷³⁸ is an apocalyptic number.

622738 is a deficient number, since it is larger than the sum of its proper divisors (320750).

622738 is a wasteful number, since it uses less digits than its factorization.

622738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128.

The product of its digits is 4032, while the sum is 28.

The square root of 622738 is about 789.1375038610. The cubic root of 622738 is about 85.3955268989.

The spelling of 622738 in words is "six hundred twenty-two thousand, seven hundred thirty-eight".