697378532 has 6 divisors (see below), whose sum is σ = 1220412438. Its totient is φ = 348689264.

The previous prime is 697378519. The next prime is 697378547. The reversal of 697378532 is 235873796.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 654029476 + 43349056 = 25574^2 + 6584^2 .

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 as a sum of consecutive naturals, namely, 87172313 + ... + 87172320.

It is an arithmetic number, because the mean of its divisors is an integer number (203402073).

Almost surely, 2^697378532 is an apocalyptic number.

It is an amenable number.

697378532 is a deficient number, since it is larger than the sum of its proper divisors (523033906).

697378532 is a wasteful number, since it uses less digits than its factorization.

697378532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174344637 (or 174344635 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 50.

The square root of 697378532 is about 26407.9255527578. The cubic root of 697378532 is about 886.7942286054.

The spelling of 697378532 in words is "six hundred ninety-seven million, three hundred seventy-eight thousand, five hundred thirty-two".