743653994 has 8 divisors (see below), whose sum is σ = 1121929380. Its totient is φ = 369677536.

The previous prime is 743653973. The next prime is 743654027. The reversal of 743653994 is 499356347.

It can be written as a sum of positive squares in 2 ways, for example, as 545829769 + 197824225 = 23363^2 + 14065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074299 + ... + 1074990.

Almost surely, 2^743653994 is an apocalyptic number.

743653994 is a deficient number, since it is larger than the sum of its proper divisors (378275386).

743653994 is a wasteful number, since it uses less digits than its factorization.

743653994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149464.

The product of its digits is 2449440, while the sum is 50.

The square root of 743653994 is about 27270.0200586652. The cubic root of 743653994 is about 905.9904884590.

The spelling of 743653994 in words is "seven hundred forty-three million, six hundred fifty-three thousand, nine hundred ninety-four".