747161746 has 4 divisors (see below), whose sum is σ = 1120742622. Its totient is φ = 373580872.

The previous prime is 747161743. The next prime is 747161759. The reversal of 747161746 is 647161747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 647161747 = 53 ⋅12210599.

It can be written as a sum of positive squares in only one way, i.e., 714225625 + 32936121 = 26725^2 + 5739^2 .

It is not an unprimeable number, because it can be changed into a prime (747161743) by changing a digit.

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, 186790435 + ... + 186790438.

Almost surely, 2^747161746 is an apocalyptic number.

747161746 is a deficient number, since it is larger than the sum of its proper divisors (373580876).

747161746 is a wasteful number, since it uses less digits than its factorization.

747161746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373580875.

The product of its digits is 197568, while the sum is 43.

The square root of 747161746 is about 27334.2595656074. The cubic root of 747161746 is about 907.4127476718.

Subtracting from 747161746 its reverse (647161747), we obtain a palindrome (99999999).

The spelling of 747161746 in words is "seven hundred forty-seven million, one hundred sixty-one thousand, seven hundred forty-six".