743212947 has 4 divisors (see below), whose sum is σ = 990950600. Its totient is φ = 495475296.

The previous prime is 743212937. The next prime is 743212979. The reversal of 743212947 is 749212347.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 743212947 - 2⁷ = 743212819 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743212937) 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, 123868822 + ... + 123868827.

It is an arithmetic number, because the mean of its divisors is an integer number (247737650).

Almost surely, 2^743212947 is an apocalyptic number.

743212947 is a deficient number, since it is larger than the sum of its proper divisors (247737653).

743212947 is a wasteful number, since it uses less digits than its factorization.

743212947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247737652.

The product of its digits is 84672, while the sum is 39.

The square root of 743212947 is about 27261.9321949124. The cubic root of 743212947 is about 905.8113444791.

The spelling of 743212947 in words is "seven hundred forty-three million, two hundred twelve thousand, nine hundred forty-seven".