746279389 has 2 divisors, whose sum is σ = 746279390. Its totient is φ = 746279388.

The previous prime is 746279383. The next prime is 746279411. The reversal of 746279389 is 983972647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390655225 + 355624164 = 19765^2 + 18858^2 .

It is a cyclic number.

It is not a de Polignac number, because 746279389 - 2⁹ = 746278877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (746279383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373139694 + 373139695.

It is an arithmetic number, because the mean of its divisors is an integer number (373139695).

Almost surely, 2^746279389 is an apocalyptic number.

It is an amenable number.

746279389 is a deficient number, since it is larger than the sum of its proper divisors (1).

746279389 is an equidigital number, since it uses as much as digits as its factorization.

746279389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The square root of 746279389 is about 27318.1146677438. The cubic root of 746279389 is about 907.0554054228.

The spelling of 746279389 in words is "seven hundred forty-six million, two hundred seventy-nine thousand, three hundred eighty-nine".