697210028 has 12 divisors (see below), whose sum is σ = 1220651712. Its totient is φ = 348452400.

The previous prime is 697210013. The next prime is 697210037. The reversal of 697210028 is 820012796.

It is a happy number.

It is a super-2 number, since 2×697210028² = 972203646287521568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 697210028.

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, 27548 + ... + 46403.

It is an arithmetic number, because the mean of its divisors is an integer number (101720976).

Almost surely, 2^697210028 is an apocalyptic number.

It is an amenable number.

697210028 is a deficient number, since it is larger than the sum of its proper divisors (523441684).

697210028 is a wasteful number, since it uses less digits than its factorization.

697210028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76312 (or 76310 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 697210028 is about 26404.7349541706. The cubic root of 697210028 is about 886.7227990041.

The spelling of 697210028 in words is "six hundred ninety-seven million, two hundred ten thousand, twenty-eight".