698507045 has 4 divisors (see below), whose sum is σ = 838208460. Its totient is φ = 558805632.

The previous prime is 698507009. The next prime is 698507057. The reversal of 698507045 is 540705896.

698507045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 147525316 + 550981729 = 12146^2 + 23473^2 .

It is a cyclic number.

It is not a de Polignac number, because 698507045 - 2¹² = 698502949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 698506987 and 698507005.

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, 69850700 + ... + 69850709.

It is an arithmetic number, because the mean of its divisors is an integer number (209552115).

Almost surely, 2^698507045 is an apocalyptic number.

It is an amenable number.

698507045 is a deficient number, since it is larger than the sum of its proper divisors (139701415).

698507045 is a wasteful number, since it uses less digits than its factorization.

698507045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139701414.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 698507045 is about 26429.2838533321. The cubic root of 698507045 is about 887.2723140056.

The spelling of 698507045 in words is "six hundred ninety-eight million, five hundred seven thousand, forty-five".