748340641 has 4 divisors (see below), whose sum is σ = 748445332. Its totient is φ = 748235952.

The previous prime is 748340623. The next prime is 748340647. The reversal of 748340641 is 146043847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146043847 = 37 ⋅3947131.

It can be written as a sum of positive squares in 2 ways, for example, as 152004241 + 596336400 = 12329^2 + 24420^2 .

It is a cyclic number.

It is not a de Polignac number, because 748340641 - 2¹⁵ = 748307873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 748340641.

It is not an unprimeable number, because it can be changed into a prime (748340647) 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, 40770 + ... + 56203.

It is an arithmetic number, because the mean of its divisors is an integer number (187111333).

Almost surely, 2^748340641 is an apocalyptic number.

It is an amenable number.

748340641 is a deficient number, since it is larger than the sum of its proper divisors (104691).

748340641 is an equidigital number, since it uses as much as digits as its factorization.

748340641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104690.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 748340641 is about 27355.8154877532. The cubic root of 748340641 is about 907.8897448879.

The spelling of 748340641 in words is "seven hundred forty-eight million, three hundred forty thousand, six hundred forty-one".