698031 has 16 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 459000.

The previous prime is 698021. The next prime is 698039. The reversal of 698031 is 130896.

It is not a de Polignac number, because 698031 - 2⁵ = 697999 is a prime.

It is a super-2 number, since 2×698031² = 974494553922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 697986 and 698004.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 698031.

It is not an unprimeable number, because it can be changed into a prime (698039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2656 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (65520).

2⁶⁹⁸⁰³¹ is an apocalyptic number.

698031 is a deficient number, since it is larger than the sum of its proper divisors (350289).

698031 is a wasteful number, since it uses less digits than its factorization.

698031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 698031 is about 835.4824953283. The cubic root of 698031 is about 88.7070704233.

It can be divided in two parts, 69 and 8031, that added together give a square (8100 = 90²).

The spelling of 698031 in words is "six hundred ninety-eight thousand, thirty-one".