698926013 has 4 divisors (see below), whose sum is σ = 723026940. Its totient is φ = 674825088.

The previous prime is 698925943. The next prime is 698926021. The reversal of 698926013 is 310629896.

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 497200804 + 201725209 = 22298^2 + 14203^2 .

It is a cyclic number.

It is not a de Polignac number, because 698926013 - 2¹⁸ = 698663869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698922013) 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, 12050420 + ... + 12050477.

It is an arithmetic number, because the mean of its divisors is an integer number (180756735).

Almost surely, 2^698926013 is an apocalyptic number.

It is an amenable number.

698926013 is a deficient number, since it is larger than the sum of its proper divisors (24100927).

698926013 is a wasteful number, since it uses less digits than its factorization.

698926013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24100926.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 698926013 is about 26437.2088731016. The cubic root of 698926013 is about 887.4496753320.

The spelling of 698926013 in words is "six hundred ninety-eight million, nine hundred twenty-six thousand, thirteen".