742794047 has 4 divisors (see below), whose sum is σ = 743139936. Its totient is φ = 742448160.

The previous prime is 742794029. The next prime is 742794049. The reversal of 742794047 is 740497247.

It is a happy number.

742794047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740497247 = 7 ⋅105785321.

It is a cyclic number.

It is not a de Polignac number, because 742794047 - 2⁶ = 742793983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742793989 and 742794007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742794049) 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, 169703 + ... + 174024.

It is an arithmetic number, because the mean of its divisors is an integer number (185784984).

Almost surely, 2^742794047 is an apocalyptic number.

742794047 is a deficient number, since it is larger than the sum of its proper divisors (345889).

742794047 is a wasteful number, since it uses less digits than its factorization.

742794047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345888.

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 742794047 is about 27254.2482376601. The cubic root of 742794047 is about 905.6411305069.

The spelling of 742794047 in words is "seven hundred forty-two million, seven hundred ninety-four thousand, forty-seven".