772066783 has 4 divisors (see below), whose sum is σ = 805634928. Its totient is φ = 738498640.

The previous prime is 772066769. The next prime is 772066787. The reversal of 772066783 is 387660277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 387660277 = 47 ⋅8248091.

It is a cyclic number.

It is not a de Polignac number, because 772066783 - 2¹³ = 772058591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772066787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16784038 + ... + 16784083.

It is an arithmetic number, because the mean of its divisors is an integer number (201408732).

Almost surely, 2^772066783 is an apocalyptic number.

772066783 is a deficient number, since it is larger than the sum of its proper divisors (33568145).

772066783 is a wasteful number, since it uses less digits than its factorization.

772066783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33568144.

The product of its (nonzero) digits is 592704, while the sum is 46.

The square root of 772066783 is about 27786.0897392922. The cubic root of 772066783 is about 917.3849744061.

The spelling of 772066783 in words is "seven hundred seventy-two million, sixty-six thousand, seven hundred eighty-three".