720698349 has 8 divisors (see below), whose sum is σ = 1098207040. Its totient is φ = 411827616.

The previous prime is 720698339. The next prime is 720698359. The reversal of 720698349 is 943896027.

It is an interprime number because it is at equal distance from previous prime (720698339) and next prime (720698359).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 720698349 - 2⁸ = 720698093 is a prime.

It is a super-2 number, since 2×720698349² = 1038812220502651602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 720698298 and 720698307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720698309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17159464 + ... + 17159505.

It is an arithmetic number, because the mean of its divisors is an integer number (137275880).

Almost surely, 2^720698349 is an apocalyptic number.

It is an amenable number.

720698349 is a deficient number, since it is larger than the sum of its proper divisors (377508691).

720698349 is a wasteful number, since it uses less digits than its factorization.

720698349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34318979.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 720698349 is about 26845.8255414133. The cubic root of 720698349 is about 896.5706320191.

The spelling of 720698349 in words is "seven hundred twenty million, six hundred ninety-eight thousand, three hundred forty-nine".