701991997 has 8 divisors (see below), whose sum is σ = 806760000. Its totient is φ = 598344864.

The previous prime is 701991977. The next prime is 701992001. The reversal of 701991997 is 799199107.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-701991997 is a prime.

It is a super-3 number, since 3×701991997³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (701991907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278872 + ... + 281377.

It is an arithmetic number, because the mean of its divisors is an integer number (100845000).

Almost surely, 2^701991997 is an apocalyptic number.

It is an amenable number.

701991997 is a deficient number, since it is larger than the sum of its proper divisors (104768003).

701991997 is a wasteful number, since it uses less digits than its factorization.

701991997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560435.

The product of its (nonzero) digits is 321489, while the sum is 52.

The square root of 701991997 is about 26495.1315716680. The cubic root of 701991997 is about 888.7454431795.

The spelling of 701991997 in words is "seven hundred one million, nine hundred ninety-one thousand, nine hundred ninety-seven".