697783042 has 24 divisors (see below), whose sum is σ = 1151834796. Its totient is φ = 316800000.

The previous prime is 697782989. The next prime is 697783057. The reversal of 697783042 is 240387796.

It can be written as a sum of positive squares in 2 ways, for example, as 680218561 + 17564481 = 26081^2 + 4191^2 .

It is a junction number, because it is equal to n+sod(n) for n = 697782983 and 697783001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386542 + ... + 388342.

Almost surely, 2^697783042 is an apocalyptic number.

697783042 is a deficient number, since it is larger than the sum of its proper divisors (454051754).

697783042 is a wasteful number, since it uses less digits than its factorization.

697783042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3415 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 697783042 is about 26415.5833174284. The cubic root of 697783042 is about 886.9656552564.

The spelling of 697783042 in words is "six hundred ninety-seven million, seven hundred eighty-three thousand, forty-two".