698630386 has 8 divisors (see below), whose sum is σ = 1048796460. Its totient is φ = 349031568.

The previous prime is 698630371. The next prime is 698630389. The reversal of 698630386 is 683036896.

It can be written as a sum of positive squares in 2 ways, for example, as 695957161 + 2673225 = 26381^2 + 1635^2 .

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

It is not an unprimeable number, because it can be changed into a prime (698630389) 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, 138721 + ... + 143668.

Almost surely, 2^698630386 is an apocalyptic number.

698630386 is a deficient number, since it is larger than the sum of its proper divisors (350166074).

698630386 is a wasteful number, since it uses less digits than its factorization.

698630386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283628.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 698630386 is about 26431.6171658111. The cubic root of 698630386 is about 887.3245351986.

The spelling of 698630386 in words is "six hundred ninety-eight million, six hundred thirty thousand, three hundred eighty-six".