747506306 has 4 divisors (see below), whose sum is σ = 1121259462. Its totient is φ = 373753152.

The previous prime is 747506297. The next prime is 747506311. The reversal of 747506306 is 603605747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603605747 = 67 ⋅9009041.

It can be written as a sum of positive squares in only one way, i.e., 697224025 + 50282281 = 26405^2 + 7091^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 747506306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186876575 + ... + 186876578.

Almost surely, 2^747506306 is an apocalyptic number.

747506306 is a deficient number, since it is larger than the sum of its proper divisors (373753156).

747506306 is a wasteful number, since it uses less digits than its factorization.

747506306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373753155.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 747506306 is about 27340.5615523895. The cubic root of 747506306 is about 907.5522132733.

The spelling of 747506306 in words is "seven hundred forty-seven million, five hundred six thousand, three hundred six".