701220991 has 8 divisors (see below), whose sum is σ = 728167104. Its totient is φ = 674743680.

The previous prime is 701220983. The next prime is 701220997. The reversal of 701220991 is 199022107.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 701220991 - 2³ = 701220983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (701220997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114151 + ... + 120136.

It is an arithmetic number, because the mean of its divisors is an integer number (91020888).

Almost surely, 2^701220991 is an apocalyptic number.

701220991 is a deficient number, since it is larger than the sum of its proper divisors (26946113).

701220991 is a wasteful number, since it uses less digits than its factorization.

701220991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234401.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 701220991 is about 26480.5776183225. The cubic root of 701220991 is about 888.4199508234.

The spelling of 701220991 in words is "seven hundred one million, two hundred twenty thousand, nine hundred ninety-one".