780368086 has 4 divisors (see below), whose sum is σ = 1170552132. Its totient is φ = 390184042.

The previous prime is 780368021. The next prime is 780368087. The reversal of 780368086 is 680863087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 680863087 = 16223 ⋅41969.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780368087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195092020 + ... + 195092023.

It is an arithmetic number, because the mean of its divisors is an integer number (292638033).

Almost surely, 2^780368086 is an apocalyptic number.

780368086 is a deficient number, since it is larger than the sum of its proper divisors (390184046).

780368086 is a wasteful number, since it uses less digits than its factorization.

780368086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390184045.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 780368086 is about 27935.0691067697. The cubic root of 780368086 is about 920.6611842850.

The spelling of 780368086 in words is "seven hundred eighty million, three hundred sixty-eight thousand, eighty-six".