720419 has 8 divisors (see below), whose sum is σ = 832608. Its totient is φ = 610560.

The previous prime is 720413. The next prime is 720439. The reversal of 720419 is 914027.

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

It is a cyclic number.

It is not a de Polignac number, because 720419 - 2⁴ = 720403 is a prime.

It is a super-2 number, since 2×720419² = 1038007071122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 720394 and 720403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720413) 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, 149 + ... + 1209.

It is an arithmetic number, because the mean of its divisors is an integer number (104076).

2⁷²⁰⁴¹⁹ is an apocalyptic number.

720419 is a deficient number, since it is larger than the sum of its proper divisors (112189).

720419 is a wasteful number, since it uses less digits than its factorization.

720419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 720419 is about 848.7749996318. The cubic root of 720419 is about 89.6454777503.

The spelling of 720419 in words is "seven hundred twenty thousand, four hundred nineteen".