697080385 has 8 divisors (see below), whose sum is σ = 838895400. Its totient is φ = 556065024.

The previous prime is 697080331. The next prime is 697080403. The reversal of 697080385 is 583080796.

It can be written as a sum of positive squares in 4 ways, for example, as 376204816 + 320875569 = 19396^2 + 17913^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-697080385 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197992 + ... + 201481.

It is an arithmetic number, because the mean of its divisors is an integer number (104861925).

Almost surely, 2^697080385 is an apocalyptic number.

It is an amenable number.

697080385 is a deficient number, since it is larger than the sum of its proper divisors (141815015).

697080385 is a wasteful number, since it uses less digits than its factorization.

697080385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399827.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 697080385 is about 26402.2799204917. The cubic root of 697080385 is about 886.6678349210.

The spelling of 697080385 in words is "six hundred ninety-seven million, eighty thousand, three hundred eighty-five".