747913123 has 2 divisors, whose sum is σ = 747913124. Its totient is φ = 747913122.

The previous prime is 747913039. The next prime is 747913129. The reversal of 747913123 is 321319747.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 747913123 - 2¹³ = 747904931 is a prime.

It is a super-2 number, since 2×747913123² = 1118748079111226258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (747913129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373956561 + 373956562.

It is an arithmetic number, because the mean of its divisors is an integer number (373956562).

Almost surely, 2^747913123 is an apocalyptic number.

747913123 is a deficient number, since it is larger than the sum of its proper divisors (1).

747913123 is an equidigital number, since it uses as much as digits as its factorization.

747913123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 747913123 is about 27348.0003473746. Note that the first 3 decimals coincide. The cubic root of 747913123 is about 907.7168231269.

It can be divided in two parts, 7479 and 13123, that added together give a palindrome (20602).

The spelling of 747913123 in words is "seven hundred forty-seven million, nine hundred thirteen thousand, one hundred twenty-three".