780561433 has 8 divisors (see below), whose sum is σ = 792443520. Its totient is φ = 768704160.

The previous prime is 780561421. The next prime is 780561437. The reversal of 780561433 is 334165087.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-780561433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 780561392 and 780561401.

It is not an unprimeable number, because it can be changed into a prime (780561437) 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, 62973 + ... + 74341.

It is an arithmetic number, because the mean of its divisors is an integer number (99055440).

Almost surely, 2^780561433 is an apocalyptic number.

It is an amenable number.

780561433 is a deficient number, since it is larger than the sum of its proper divisors (11882087).

780561433 is a wasteful number, since it uses less digits than its factorization.

780561433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12407.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 780561433 is about 27938.5295425511. The cubic root of 780561433 is about 920.7372135256.

The spelling of 780561433 in words is "seven hundred eighty million, five hundred sixty-one thousand, four hundred thirty-three".