747626746 has 4 divisors (see below), whose sum is σ = 1121440122. Its totient is φ = 373813372.

The previous prime is 747626743. The next prime is 747626777. The reversal of 747626746 is 647626747.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 742835025 + 4791721 = 27255^2 + 2189^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 747626746.

It is not an unprimeable number, because it can be changed into a prime (747626741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186906685 + ... + 186906688.

Almost surely, 2^747626746 is an apocalyptic number.

747626746 is a deficient number, since it is larger than the sum of its proper divisors (373813376).

747626746 is a wasteful number, since it uses less digits than its factorization.

747626746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373813375.

The product of its digits is 2370816, while the sum is 49.

The square root of 747626746 is about 27342.7640519389. The cubic root of 747626746 is about 907.6009529819.

Subtracting from 747626746 its reverse (647626747), we obtain a palindrome (99999999).

The spelling of 747626746 in words is "seven hundred forty-seven million, six hundred twenty-six thousand, seven hundred forty-six".