782720133 has 16 divisors (see below), whose sum is σ = 1129564800. Its totient is φ = 479248704.

The previous prime is 782720131. The next prime is 782720167. The reversal of 782720133 is 331027287.

It is not a de Polignac number, because 782720133 - 2¹ = 782720131 is a prime.

It is a super-2 number, since 2×782720133² = 1225301613207075378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 782720094 and 782720103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782720131) 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, 42666 + ... + 58187.

It is an arithmetic number, because the mean of its divisors is an integer number (70597800).

Almost surely, 2^782720133 is an apocalyptic number.

It is an amenable number.

782720133 is a deficient number, since it is larger than the sum of its proper divisors (346844667).

782720133 is a wasteful number, since it uses less digits than its factorization.

782720133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101068.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 782720133 is about 27977.1358970142. The cubic root of 782720133 is about 921.5852210701.

The spelling of 782720133 in words is "seven hundred eighty-two million, seven hundred twenty thousand, one hundred thirty-three".