697018226 has 8 divisors (see below), whose sum is σ = 1046791020. Its totient is φ = 348087888.

The previous prime is 697018187. The next prime is 697018237. The reversal of 697018226 is 622810796.

It can be written as a sum of positive squares in 2 ways, for example, as 650301001 + 46717225 = 25501^2 + 6835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×697018226³ (a number of 28 digits) contains 333 as substring.

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, 208541 + ... + 211856.

Almost surely, 2^697018226 is an apocalyptic number.

697018226 is a deficient number, since it is larger than the sum of its proper divisors (349772794).

697018226 is a wasteful number, since it uses less digits than its factorization.

697018226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421228.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 697018226 is about 26401.1027421205. The cubic root of 697018226 is about 886.6414792689.

The spelling of 697018226 in words is "six hundred ninety-seven million, eighteen thousand, two hundred twenty-six".