697507730365 has 4 divisors (see below), whose sum is σ = 837009276444. Its totient is φ = 558006184288.

The previous prime is 697507730341. The next prime is 697507730393. The reversal of 697507730365 is 563037705796.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101718258489 + 595789471876 = 318933^2 + 771874^2 .

It is a cyclic number.

It is not a de Polignac number, because 697507730365 - 2¹¹ = 697507728317 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 69750773032 + ... + 69750773041.

It is an arithmetic number, because the mean of its divisors is an integer number (209252319111).

Almost surely, 2^697507730365 is an apocalyptic number.

It is an amenable number.

697507730365 is a deficient number, since it is larger than the sum of its proper divisors (139501546079).

697507730365 is a wasteful number, since it uses less digits than its factorization.

697507730365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139501546078.

The product of its (nonzero) digits is 25004700, while the sum is 58.

The spelling of 697507730365 in words is "six hundred ninety-seven billion, five hundred seven million, seven hundred thirty thousand, three hundred sixty-five".