766946429 has 4 divisors (see below), whose sum is σ = 774540060. Its totient is φ = 759352800.

The previous prime is 766946407. The next prime is 766946437. The reversal of 766946429 is 924649667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 924649667 = 10789 ⋅85703.

It can be written as a sum of positive squares in 2 ways, for example, as 743925625 + 23020804 = 27275^2 + 4798^2 .

It is a cyclic number.

It is not a de Polignac number, because 766946429 - 2¹⁶ = 766880893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766946489) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3796664 + ... + 3796865.

It is an arithmetic number, because the mean of its divisors is an integer number (193635015).

Almost surely, 2^766946429 is an apocalyptic number.

It is an amenable number.

766946429 is a deficient number, since it is larger than the sum of its proper divisors (7593631).

766946429 is a wasteful number, since it uses less digits than its factorization.

766946429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593630.

The product of its digits is 3919104, while the sum is 53.

The square root of 766946429 is about 27693.7976630147. The cubic root of 766946429 is about 915.3524393046.

The spelling of 766946429 in words is "seven hundred sixty-six million, nine hundred forty-six thousand, four hundred twenty-nine".