701991547 has 2 divisors, whose sum is σ = 701991548. Its totient is φ = 701991546.

The previous prime is 701991527. The next prime is 701991569. The reversal of 701991547 is 745199107.

It is a weak prime.

It is an emirp because it is prime and its reverse (745199107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 701991547 - 2¹⁵ = 701958779 is a prime.

It is not a weakly prime, because it can be changed into another prime (701991527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350995773 + 350995774.

It is an arithmetic number, because the mean of its divisors is an integer number (350995774).

Almost surely, 2^701991547 is an apocalyptic number.

701991547 is a deficient number, since it is larger than the sum of its proper divisors (1).

701991547 is an equidigital number, since it uses as much as digits as its factorization.

701991547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 701991547 is about 26495.1230795405. The cubic root of 701991547 is about 888.7452532744.

The spelling of 701991547 in words is "seven hundred one million, nine hundred ninety-one thousand, five hundred forty-seven".