698407641 has 12 divisors (see below), whose sum is σ = 1009055268. Its totient is φ = 465492384.

The previous prime is 698407621. The next prime is 698407657. The reversal of 698407641 is 146704896.

698407641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 308740041 + 389667600 = 17571^2 + 19740^2 .

It is not a de Polignac number, because 698407641 - 2⁷ = 698407513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (698407621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48871 + ... + 61523.

It is an arithmetic number, because the mean of its divisors is an integer number (84087939).

Almost surely, 2^698407641 is an apocalyptic number.

It is an amenable number.

698407641 is a deficient number, since it is larger than the sum of its proper divisors (310647627).

698407641 is a wasteful number, since it uses less digits than its factorization.

698407641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18792 (or 18789 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 698407641 is about 26427.4032208993. The cubic root of 698407641 is about 887.2302229955.

The spelling of 698407641 in words is "six hundred ninety-eight million, four hundred seven thousand, six hundred forty-one".