780479383 has 2 divisors, whose sum is σ = 780479384. Its totient is φ = 780479382.

The previous prime is 780479353. The next prime is 780479417. The reversal of 780479383 is 383974087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 780479383 - 2⁵ = 780479351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (780479353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390239691 + 390239692.

It is an arithmetic number, because the mean of its divisors is an integer number (390239692).

Almost surely, 2^780479383 is an apocalyptic number.

780479383 is a deficient number, since it is larger than the sum of its proper divisors (1).

780479383 is an equidigital number, since it uses as much as digits as its factorization.

780479383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 780479383 is about 27937.0611016979. The cubic root of 780479383 is about 920.7049507924.

The spelling of 780479383 in words is "seven hundred eighty million, four hundred seventy-nine thousand, three hundred eighty-three".