746721487 has 2 divisors, whose sum is σ = 746721488. Its totient is φ = 746721486.

The previous prime is 746721449. The next prime is 746721491. The reversal of 746721487 is 784127647.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 746721487 - 2¹¹ = 746719439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (746721407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373360743 + 373360744.

It is an arithmetic number, because the mean of its divisors is an integer number (373360744).

Almost surely, 2^746721487 is an apocalyptic number.

746721487 is a deficient number, since it is larger than the sum of its proper divisors (1).

746721487 is an equidigital number, since it uses as much as digits as its factorization.

746721487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 526848, while the sum is 46.

The square root of 746721487 is about 27326.2051335344. The cubic root of 746721487 is about 907.2344841194.

The spelling of 746721487 in words is "seven hundred forty-six million, seven hundred twenty-one thousand, four hundred eighty-seven".