697687425 has 60 divisors (see below), whose sum is σ = 1304222700. Its totient is φ = 368686080.

The previous prime is 697687399. The next prime is 697687477. The reversal of 697687425 is 524786796.

697687425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 285069456 + 412617969 = 16884^2 + 20313^2 .

It is not a de Polignac number, because 697687425 - 2⁷ = 697687297 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 227301 + ... + 230349.

It is an arithmetic number, because the mean of its divisors is an integer number (21737045).

Almost surely, 2^697687425 is an apocalyptic number.

It is an amenable number.

697687425 is a deficient number, since it is larger than the sum of its proper divisors (606535275).

697687425 is a wasteful number, since it uses less digits than its factorization.

697687425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184 (or 3170 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 697687425 is about 26413.7733957116. The cubic root of 697687425 is about 886.9251398602.

The spelling of 697687425 in words is "six hundred ninety-seven million, six hundred eighty-seven thousand, four hundred twenty-five".