616938 has 32 divisors (see below), whose sum is σ = 1451904. Its totient is φ = 171072.

The previous prime is 616933. The next prime is 616943. The reversal of 616938 is 839616.

It is an interprime number because it is at equal distance from previous prime (616933) and next prime (616943).

It is a super-2 number, since 2×616938² = 761224991688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 616899 and 616908.

It is not an unprimeable number, because it can be changed into a prime (616933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356 + ... + 1752.

It is an arithmetic number, because the mean of its divisors is an integer number (45372).

2⁶¹⁶⁹³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725952).

616938 is an abundant number, since it is smaller than the sum of its proper divisors (834966).

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

616938 is a wasteful number, since it uses less digits than its factorization.

616938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its digits is 7776, while the sum is 33.

The square root of 616938 is about 785.4540088382. The cubic root of 616938 is about 85.1295832025.

The spelling of 616938 in words is "six hundred sixteen thousand, nine hundred thirty-eight".