698616001 has 4 divisors (see below), whose sum is σ = 698885572. Its totient is φ = 698346432.

The previous prime is 698615999. The next prime is 698616011. The reversal of 698616001 is 100616896.

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 381811600 + 316804401 = 19540^2 + 17799^2 .

It is a cyclic number.

It is not a de Polignac number, because 698616001 - 2¹ = 698615999 is a prime.

It is a super-3 number, since 3×698616001³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (698616011) 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, 130860 + ... + 136093.

It is an arithmetic number, because the mean of its divisors is an integer number (174721393).

Almost surely, 2^698616001 is an apocalyptic number.

It is an amenable number.

698616001 is a deficient number, since it is larger than the sum of its proper divisors (269571).

698616001 is a wasteful number, since it uses less digits than its factorization.

698616001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269570.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 698616001 is about 26431.3450471216. The cubic root of 698616001 is about 887.3184450679.

The spelling of 698616001 in words is "six hundred ninety-eight million, six hundred sixteen thousand, one".