698690253 has 4 divisors (see below), whose sum is σ = 931587008. Its totient is φ = 465793500.

The previous prime is 698690233. The next prime is 698690257. The reversal of 698690253 is 352096896.

698690253 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 698690253 - 2¹⁴ = 698673869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698690257) 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, 116448373 + ... + 116448378.

It is an arithmetic number, because the mean of its divisors is an integer number (232896752).

Almost surely, 2^698690253 is an apocalyptic number.

It is an amenable number.

698690253 is a deficient number, since it is larger than the sum of its proper divisors (232896755).

698690253 is a wasteful number, since it uses less digits than its factorization.

698690253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232896754.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 698690253 is about 26432.7496299572. The cubic root of 698690253 is about 887.3498799979.

The spelling of 698690253 in words is "six hundred ninety-eight million, six hundred ninety thousand, two hundred fifty-three".