720424965 has 64 divisors (see below), whose sum is σ = 1316431872. Its totient is φ = 333849600.

The previous prime is 720424949. The next prime is 720424973. The reversal of 720424965 is 569424027.

It is not a de Polignac number, because 720424965 - 2⁴ = 720424949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 222055 + ... + 225275.

It is an arithmetic number, because the mean of its divisors is an integer number (20569248).

Almost surely, 2^720424965 is an apocalyptic number.

It is an amenable number.

720424965 is a deficient number, since it is larger than the sum of its proper divisors (596006907).

720424965 is a wasteful number, since it uses less digits than its factorization.

720424965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 720424965 is about 26840.7333171059. The cubic root of 720424965 is about 896.4572516823.

The spelling of 720424965 in words is "seven hundred twenty million, four hundred twenty-four thousand, nine hundred sixty-five".