746764921 has 8 divisors (see below), whose sum is σ = 880976384. Its totient is φ = 619436160.

The previous prime is 746764919. The next prime is 746764937. The reversal of 746764921 is 129467647.

746764921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 746764921 - 2¹ = 746764919 is a prime.

It is a super-2 number, since 2×746764921² = 1115315694472272482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (746768921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720440 + ... + 1720873.

It is an arithmetic number, because the mean of its divisors is an integer number (110122048).

Almost surely, 2^746764921 is an apocalyptic number.

It is an amenable number.

746764921 is a deficient number, since it is larger than the sum of its proper divisors (134211463).

746764921 is a wasteful number, since it uses less digits than its factorization.

746764921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441351.

The product of its digits is 508032, while the sum is 46.

The square root of 746764921 is about 27326.9998536246. Note that the first 3 decimals coincide. The cubic root of 746764921 is about 907.2520739255.

It can be divided in two parts, 74676 and 4921, that added together give a palindrome (79597).

The spelling of 746764921 in words is "seven hundred forty-six million, seven hundred sixty-four thousand, nine hundred twenty-one".