698838541 has 4 divisors (see below), whose sum is σ = 702150784. Its totient is φ = 695526300.

The previous prime is 698838473. The next prime is 698838551. The reversal of 698838541 is 145838896.

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 698838541 - 2¹⁵ = 698805773 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 (698838551) 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, 1655805 + ... + 1656226.

It is an arithmetic number, because the mean of its divisors is an integer number (175537696).

Almost surely, 2^698838541 is an apocalyptic number.

It is an amenable number.

698838541 is a deficient number, since it is larger than the sum of its proper divisors (3312243).

698838541 is a wasteful number, since it uses less digits than its factorization.

698838541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312242.

The product of its digits is 1658880, while the sum is 52.

The square root of 698838541 is about 26435.5544863353. The cubic root of 698838541 is about 887.4126517486.

The spelling of 698838541 in words is "six hundred ninety-eight million, eight hundred thirty-eight thousand, five hundred forty-one".