744463901 has 4 divisors (see below), whose sum is σ = 770135100. Its totient is φ = 718792704.

The previous prime is 744463883. The next prime is 744463913. The reversal of 744463901 is 109364447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 109364447 = 419 ⋅261013.

It can be written as a sum of positive squares in 2 ways, for example, as 322202500 + 422261401 = 17950^2 + 20549^2 .

It is a cyclic number.

It is not a de Polignac number, because 744463901 - 2¹⁰ = 744462877 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 (744463981) 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, 12835556 + ... + 12835613.

It is an arithmetic number, because the mean of its divisors is an integer number (192533775).

Almost surely, 2^744463901 is an apocalyptic number.

It is an amenable number.

744463901 is a deficient number, since it is larger than the sum of its proper divisors (25671199).

744463901 is a wasteful number, since it uses less digits than its factorization.

744463901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25671198.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 744463901 is about 27284.8657867324. The cubic root of 744463901 is about 906.3192712107.

The spelling of 744463901 in words is "seven hundred forty-four million, four hundred sixty-three thousand, nine hundred one".