780743047 has 18 divisors (see below), whose sum is σ = 912756488. Its totient is φ = 654190584.

The previous prime is 780743039. The next prime is 780743063. The reversal of 780743047 is 740347087.

It is not a de Polignac number, because 780743047 - 2³ = 780743039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780743077) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4361604 + ... + 4361782.

Almost surely, 2^780743047 is an apocalyptic number.

780743047 is a deficient number, since it is larger than the sum of its proper divisors (132013441).

780743047 is an frugal number, since it uses more digits than its factorization.

780743047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 780743047 is about 27941.7795961531. The cubic root of 780743047 is about 920.8086176004.

The spelling of 780743047 in words is "seven hundred eighty million, seven hundred forty-three thousand, forty-seven".