744401387 has 2 divisors, whose sum is σ = 744401388. Its totient is φ = 744401386.

The previous prime is 744401363. The next prime is 744401401. The reversal of 744401387 is 783104447.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 744401387 - 2⁸ = 744401131 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 744401387.

It is not a weakly prime, because it can be changed into another prime (744401347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372200693 + 372200694.

It is an arithmetic number, because the mean of its divisors is an integer number (372200694).

Almost surely, 2^744401387 is an apocalyptic number.

744401387 is a deficient number, since it is larger than the sum of its proper divisors (1).

744401387 is an equidigital number, since it uses as much as digits as its factorization.

744401387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 744401387 is about 27283.7201825558. The cubic root of 744401387 is about 906.2939020698.

The spelling of 744401387 in words is "seven hundred forty-four million, four hundred one thousand, three hundred eighty-seven".