733139947 has 4 divisors (see below), whose sum is σ = 771726280. Its totient is φ = 694553616.

The previous prime is 733139873. The next prime is 733139951. The reversal of 733139947 is 749931337.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749931337 = 2801 ⋅267737.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-733139947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 733139897 and 733139906.

It is not an unprimeable number, because it can be changed into a prime (733139047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19293138 + ... + 19293175.

It is an arithmetic number, because the mean of its divisors is an integer number (192931570).

Almost surely, 2^733139947 is an apocalyptic number.

733139947 is a deficient number, since it is larger than the sum of its proper divisors (38586333).

733139947 is a wasteful number, since it uses less digits than its factorization.

733139947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38586332.

The product of its digits is 428652, while the sum is 46.

The square root of 733139947 is about 27076.5571482048. The cubic root of 733139947 is about 901.7004669940.

It can be divided in two parts, 7331 and 39947, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 733139947 in words is "seven hundred thirty-three million, one hundred thirty-nine thousand, nine hundred forty-seven".