780530003 has 8 divisors (see below), whose sum is σ = 851751936. Its totient is φ = 709352200.

The previous prime is 780529999. The next prime is 780530029. The reversal of 780530003 is 300035087.

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 780530003 - 2² = 780529999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (780530083) 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, 33950 + ... + 52092.

It is an arithmetic number, because the mean of its divisors is an integer number (106468992).

Almost surely, 2^780530003 is an apocalyptic number.

780530003 is a deficient number, since it is larger than the sum of its proper divisors (71221933).

780530003 is a wasteful number, since it uses less digits than its factorization.

780530003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22065.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 780530003 is about 27937.9670520244. The cubic root of 780530003 is about 920.7248552589.

The spelling of 780530003 in words is "seven hundred eighty million, five hundred thirty thousand, three".