690039230597 has 4 divisors (see below), whose sum is σ = 697153037196. Its totient is φ = 682925424000.

The previous prime is 690039230563. The next prime is 690039230681. The reversal of 690039230597 is 795032930096.

It is a Cunningham number, because it is equal to 830686²+1.

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 309854769316 + 380184461281 = 556646^2 + 616591^2 .

It is a cyclic number.

It is not a de Polignac number, because 690039230597 - 2⁶ = 690039230533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690039250597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3556903154 + ... + 3556903347.

It is an arithmetic number, because the mean of its divisors is an integer number (174288259299).

Almost surely, 2^690039230597 is an apocalyptic number.

It is an amenable number.

690039230597 is a deficient number, since it is larger than the sum of its proper divisors (7113806599).

690039230597 is an equidigital number, since it uses as much as digits as its factorization.

690039230597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113806598.

The product of its (nonzero) digits is 2755620, while the sum is 53.

The spelling of 690039230597 in words is "six hundred ninety billion, thirty-nine million, two hundred thirty thousand, five hundred ninety-seven".