780742471 has 16 divisors (see below), whose sum is σ = 852736000. Its totient is φ = 712087200.

The previous prime is 780742463. The next prime is 780742499. The reversal of 780742471 is 174247087.

It is a cyclic number.

It is not a de Polignac number, because 780742471 - 2³ = 780742463 is a prime.

It is a super-3 number, since 3×780742471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780742421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113881 + ... + 120541.

It is an arithmetic number, because the mean of its divisors is an integer number (53296000).

Almost surely, 2^780742471 is an apocalyptic number.

780742471 is a deficient number, since it is larger than the sum of its proper divisors (71993529).

780742471 is a wasteful number, since it uses less digits than its factorization.

780742471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910.

The product of its (nonzero) digits is 87808, while the sum is 40.

The square root of 780742471 is about 27941.7692890053. The cubic root of 780742471 is about 920.8083911555.

The spelling of 780742471 in words is "seven hundred eighty million, seven hundred forty-two thousand, four hundred seventy-one".