698516401 has 4 divisors (see below), whose sum is σ = 762017904. Its totient is φ = 635014900.

The previous prime is 698516353. The next prime is 698516419. The reversal of 698516401 is 104615896.

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 a cyclic number.

It is not a de Polignac number, because 698516401 - 2¹¹ = 698514353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (698516461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31750735 + ... + 31750756.

It is an arithmetic number, because the mean of its divisors is an integer number (190504476).

Almost surely, 2^698516401 is an apocalyptic number.

It is an amenable number.

698516401 is a deficient number, since it is larger than the sum of its proper divisors (63501503).

698516401 is a wasteful number, since it uses less digits than its factorization.

698516401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63501502.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 698516401 is about 26429.4608533735. The cubic root of 698516401 is about 887.2762754463.

The spelling of 698516401 in words is "six hundred ninety-eight million, five hundred sixteen thousand, four hundred one".