720405367 has 8 divisors (see below), whose sum is σ = 786136320. Its totient is φ = 654714360.

The previous prime is 720405353. The next prime is 720405407. The reversal of 720405367 is 763504027.

It is a happy number.

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 720405367 - 2¹⁹ = 719881079 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 (720405337) 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, 37618 + ... + 53440.

It is an arithmetic number, because the mean of its divisors is an integer number (98267040).

Almost surely, 2^720405367 is an apocalyptic number.

720405367 is a deficient number, since it is larger than the sum of its proper divisors (65730953).

720405367 is a wasteful number, since it uses less digits than its factorization.

720405367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19973.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 720405367 is about 26840.3682351789. The cubic root of 720405367 is about 896.4491227171.

The spelling of 720405367 in words is "seven hundred twenty million, four hundred five thousand, three hundred sixty-seven".