746621 has 4 divisors (see below), whose sum is σ = 755100. Its totient is φ = 738144.

The previous prime is 746597. The next prime is 746653. The reversal of 746621 is 126647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 126647 = 89 ⋅1423.

It can be written as a sum of positive squares in 2 ways, for example, as 403225 + 343396 = 635^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 746621 - 2¹⁴ = 730237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746671) 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, 4106 + ... + 4283.

It is an arithmetic number, because the mean of its divisors is an integer number (188775).

2⁷⁴⁶⁶²¹ is an apocalyptic number.

It is an amenable number.

746621 is a deficient number, since it is larger than the sum of its proper divisors (8479).

746621 is an equidigital number, since it uses as much as digits as its factorization.

746621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478.

The product of its digits is 2016, while the sum is 26.

The square root of 746621 is about 864.0723349350. The cubic root of 746621 is about 90.7193786500.

Adding to 746621 its sum of digits (26), we get a palindrome (746647).

The spelling of 746621 in words is "seven hundred forty-six thousand, six hundred twenty-one".