743953 has 4 divisors (see below), whose sum is σ = 850240. Its totient is φ = 637668.

The previous prime is 743947. The next prime is 743987. The reversal of 743953 is 359347.

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: 359347 = 19 ⋅18913.

It is a cyclic number.

It is not a de Polignac number, because 743953 - 2⁵ = 743921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743923) 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, 53133 + ... + 53146.

It is an arithmetic number, because the mean of its divisors is an integer number (212560).

2⁷⁴³⁹⁵³ is an apocalyptic number.

It is an amenable number.

743953 is a deficient number, since it is larger than the sum of its proper divisors (106287).

743953 is a wasteful number, since it uses less digits than its factorization.

743953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106286.

The product of its digits is 11340, while the sum is 31.

The square root of 743953 is about 862.5271010235. The cubic root of 743953 is about 90.6111898100.

The spelling of 743953 in words is "seven hundred forty-three thousand, nine hundred fifty-three".