780113377 has 4 divisors (see below), whose sum is σ = 780848320. Its totient is φ = 779378436.

The previous prime is 780113371. The next prime is 780113393. The reversal of 780113377 is 773311087.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773311087 = 383 ⋅2019089.

It is a cyclic number.

It is not a de Polignac number, because 780113377 - 2⁷ = 780113249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (780113371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365877 + ... + 368002.

It is an arithmetic number, because the mean of its divisors is an integer number (195212080).

Almost surely, 2^780113377 is an apocalyptic number.

It is an amenable number.

780113377 is a deficient number, since it is larger than the sum of its proper divisors (734943).

780113377 is a wasteful number, since it uses less digits than its factorization.

780113377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734942.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 780113377 is about 27930.5097876856. The cubic root of 780113377 is about 920.5610066843.

The spelling of 780113377 in words is "seven hundred eighty million, one hundred thirteen thousand, three hundred seventy-seven".