747641 has 4 divisors (see below), whose sum is σ = 765072. Its totient is φ = 730212.

The previous prime is 747619. The next prime is 747647. The reversal of 747641 is 146747.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146747 = 257 ⋅571.

It is a cyclic number.

It is not a de Polignac number, because 747641 - 2¹⁴ = 731257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (747647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8651 + ... + 8736.

It is an arithmetic number, because the mean of its divisors is an integer number (191268).

2⁷⁴⁷⁶⁴¹ is an apocalyptic number.

It is an amenable number.

747641 is a deficient number, since it is larger than the sum of its proper divisors (17431).

747641 is a wasteful number, since it uses less digits than its factorization.

747641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17430.

The product of its digits is 4704, while the sum is 29.

The square root of 747641 is about 864.6623618500. The cubic root of 747641 is about 90.7606720950.

The spelling of 747641 in words is "seven hundred forty-seven thousand, six hundred forty-one".