745557667 has 2 divisors, whose sum is σ = 745557668. Its totient is φ = 745557666.

The previous prime is 745557641. The next prime is 745557671. The reversal of 745557667 is 766755547.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (766755547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 745557667 - 2¹¹ = 745555619 is a prime.

It is not a weakly prime, because it can be changed into another prime (745557697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372778833 + 372778834.

It is an arithmetic number, because the mean of its divisors is an integer number (372778834).

Almost surely, 2^745557667 is an apocalyptic number.

745557667 is a deficient number, since it is larger than the sum of its proper divisors (1).

745557667 is an equidigital number, since it uses as much as digits as its factorization.

745557667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6174000, while the sum is 52.

The square root of 745557667 is about 27304.9018859252. The cubic root of 745557667 is about 906.7629086279.

The spelling of 745557667 in words is "seven hundred forty-five million, five hundred fifty-seven thousand, six hundred sixty-seven".