742775047 has 8 divisors (see below), whose sum is σ = 850557600. Its totient is φ = 635410464.

The previous prime is 742775023. The next prime is 742775069. The reversal of 742775047 is 740577247.

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

It is a cyclic number.

It is not a de Polignac number, because 742775047 - 2¹⁹ = 742250759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742774994 and 742775012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742775947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100672 + ... + 107797.

It is an arithmetic number, because the mean of its divisors is an integer number (106319700).

Almost surely, 2^742775047 is an apocalyptic number.

742775047 is a deficient number, since it is larger than the sum of its proper divisors (107782553).

742775047 is a wasteful number, since it uses less digits than its factorization.

742775047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208985.

The product of its (nonzero) digits is 384160, while the sum is 43.

The square root of 742775047 is about 27253.8996659194. The cubic root of 742775047 is about 905.6334086140.

The spelling of 742775047 in words is "seven hundred forty-two million, seven hundred seventy-five thousand, forty-seven".