766743946 has 8 divisors (see below), whose sum is σ = 1150236900. Its totient is φ = 383331648.

The previous prime is 766743941. The next prime is 766743949. The reversal of 766743946 is 649347667.

It can be written as a sum of positive squares in 2 ways, for example, as 644398225 + 122345721 = 25385^2 + 11061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 766743893 and 766743902.

It is not an unprimeable number, because it can be changed into a prime (766743941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18210 + ... + 43186.

Almost surely, 2^766743946 is an apocalyptic number.

766743946 is a deficient number, since it is larger than the sum of its proper divisors (383492954).

766743946 is a wasteful number, since it uses less digits than its factorization.

766743946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40328.

The product of its digits is 4572288, while the sum is 52.

The square root of 766743946 is about 27690.1416753328. The cubic root of 766743946 is about 915.2718775624.

The spelling of 766743946 in words is "seven hundred sixty-six million, seven hundred forty-three thousand, nine hundred forty-six".