697145212 has 6 divisors (see below), whose sum is σ = 1220004128. Its totient is φ = 348572604.

The previous prime is 697145179. The next prime is 697145227. The reversal of 697145212 is 212541796.

It is a super-2 number, since 2×697145212² = 972022893229049888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87143148 + ... + 87143155.

Almost surely, 2^697145212 is an apocalyptic number.

It is an amenable number.

697145212 is a deficient number, since it is larger than the sum of its proper divisors (522858916).

697145212 is a wasteful number, since it uses less digits than its factorization.

697145212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174286307 (or 174286305 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 697145212 is about 26403.5075700180. The cubic root of 697145212 is about 886.6953201461.

The spelling of 697145212 in words is "six hundred ninety-seven million, one hundred forty-five thousand, two hundred twelve".