746670121 has 2 divisors, whose sum is σ = 746670122. Its totient is φ = 746670120.

The previous prime is 746670079. The next prime is 746670157. The reversal of 746670121 is 121076647.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 705646096 + 41024025 = 26564^2 + 6405^2 .

It is an emirp because it is prime and its reverse (121076647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 746670121 - 2¹⁷ = 746539049 is a prime.

It is not a weakly prime, because it can be changed into another prime (746670181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373335060 + 373335061.

It is an arithmetic number, because the mean of its divisors is an integer number (373335061).

Almost surely, 2^746670121 is an apocalyptic number.

It is an amenable number.

746670121 is a deficient number, since it is larger than the sum of its proper divisors (1).

746670121 is an equidigital number, since it uses as much as digits as its factorization.

746670121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 746670121 is about 27325.2652503137. The cubic root of 746670121 is about 907.2136811489.

The spelling of 746670121 in words is "seven hundred forty-six million, six hundred seventy thousand, one hundred twenty-one".