746646646 has 8 divisors (see below), whose sum is σ = 1126676880. Its totient is φ = 371087688.

The previous prime is 746646611. The next prime is 746646671. The reversal of 746646646 is 646646647.

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

It is a self number, because there is not a number n which added to its sum of digits gives 746646646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117401 + ... + 1118068.

It is an arithmetic number, because the mean of its divisors is an integer number (140834610).

Almost surely, 2^746646646 is an apocalyptic number.

746646646 is a deficient number, since it is larger than the sum of its proper divisors (380030234).

746646646 is a wasteful number, since it uses less digits than its factorization.

746646646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235638.

The product of its digits is 3483648, while the sum is 49.

The square root of 746646646 is about 27324.8356994146. The cubic root of 746646646 is about 907.2041735749.

Subtracting from 746646646 its reverse (646646647), we obtain a palindrome (99999999).

The spelling of 746646646 in words is "seven hundred forty-six million, six hundred forty-six thousand, six hundred forty-six".