698492041 has 27 divisors (see below), whose sum is σ = 805788711. Its totient is φ = 605118384.

The previous prime is 698492027. The next prime is 698492059. The reversal of 698492041 is 140294896.

The square root of 698492041 is 26429.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 103327225 + 595164816 = 10165^2 + 24396^2 .

It is not a de Polignac number, because 698492041 - 2²¹ = 696394889 is a prime.

It is a super-2 number, since 2×698492041² = 975782262680691362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (698492941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6527910 + ... + 6528016.

Almost surely, 2^698492041 is an apocalyptic number.

698492041 is the 26429-th square number.

698492041 is the 13215-th centered octagonal number.

It is an amenable number.

698492041 is a deficient number, since it is larger than the sum of its proper divisors (107296670).

698492041 is a wasteful number, since it uses less digits than its factorization.

698492041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The cubic root of 698492041 is about 887.2659610612.

The spelling of 698492041 in words is "six hundred ninety-eight million, four hundred ninety-two thousand, forty-one".