694238928 has 80 divisors (see below), whose sum is σ = 1911395520. Its totient is φ = 216373248.

The previous prime is 694238921. The next prime is 694238933. The reversal of 694238928 is 829832496.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694238921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125403 + ... + 130821.

It is an arithmetic number, because the mean of its divisors is an integer number (23892444).

Almost surely, 2^694238928 is an apocalyptic number.

694238928 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694238928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955697760).

694238928 is an abundant number, since it is smaller than the sum of its proper divisors (1217156592).

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

694238928 is a wasteful number, since it uses less digits than its factorization.

694238928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5604 (or 5598 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 694238928 is about 26348.4141458267. The cubic root of 694238928 is about 885.4614415088.

The spelling of 694238928 in words is "six hundred ninety-four million, two hundred thirty-eight thousand, nine hundred twenty-eight".