697428452 has 36 divisors (see below), whose sum is σ = 1441359360. Its totient is φ = 289244880.

The previous prime is 697428449. The next prime is 697428493. The reversal of 697428452 is 254824796.

697428452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 697428397 and 697428406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13949 + ... + 39867.

It is an arithmetic number, because the mean of its divisors is an integer number (40037760).

Almost surely, 2^697428452 is an apocalyptic number.

697428452 is a gapful number since it is divisible by the number (62) 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 697428452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720679680).

697428452 is an abundant number, since it is smaller than the sum of its proper divisors (743930908).

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

697428452 is a wasteful number, since it uses less digits than its factorization.

697428452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25992 (or 25959 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 697428452 is about 26408.8707066395. The cubic root of 697428452 is about 886.8153877080.

The spelling of 697428452 in words is "six hundred ninety-seven million, four hundred twenty-eight thousand, four hundred fifty-two".