747090243 has 8 divisors (see below), whose sum is σ = 1106800400. Its totient is φ = 498060144.

The previous prime is 747090193. The next prime is 747090247. The reversal of 747090243 is 342090747.

It is not a de Polignac number, because 747090243 - 2²² = 742895939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 747090198 and 747090207.

It is not an unprimeable number, because it can be changed into a prime (747090247) 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, 13834978 + ... + 13835031.

It is an arithmetic number, because the mean of its divisors is an integer number (138350050).

Almost surely, 2^747090243 is an apocalyptic number.

747090243 is a deficient number, since it is larger than the sum of its proper divisors (359710157).

747090243 is a wasteful number, since it uses less digits than its factorization.

747090243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27670018 (or 27670012 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 747090243 is about 27332.9515969278. The cubic root of 747090243 is about 907.3838004352.

The spelling of 747090243 in words is "seven hundred forty-seven million, ninety thousand, two hundred forty-three".