766422746 has 4 divisors (see below), whose sum is σ = 1149634122. Its totient is φ = 383211372.

The previous prime is 766422719. The next prime is 766422791. The reversal of 766422746 is 647224667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 647224667 = 239 ⋅2708053.

It can be written as a sum of positive squares in only one way, i.e., 703045225 + 63377521 = 26515^2 + 7961^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 766422697 and 766422706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191605685 + ... + 191605688.

Almost surely, 2^766422746 is an apocalyptic number.

766422746 is a deficient number, since it is larger than the sum of its proper divisors (383211376).

766422746 is a wasteful number, since it uses less digits than its factorization.

766422746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383211375.

The product of its digits is 677376, while the sum is 44.

The square root of 766422746 is about 27684.3411696937. The cubic root of 766422746 is about 915.1440528870.

The spelling of 766422746 in words is "seven hundred sixty-six million, four hundred twenty-two thousand, seven hundred forty-six".