797070251 has 4 divisors (see below), whose sum is σ = 798694104. Its totient is φ = 795446400.

The previous prime is 797070229. The next prime is 797070271. The reversal of 797070251 is 152070797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 797070251 - 2⁶ = 797070187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797070271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811190 + ... + 812171.

It is an arithmetic number, because the mean of its divisors is an integer number (199673526).

Almost surely, 2^797070251 is an apocalyptic number.

797070251 is a deficient number, since it is larger than the sum of its proper divisors (1623853).

797070251 is a wasteful number, since it uses less digits than its factorization.

797070251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623852.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 797070251 is about 28232.4326086152. The cubic root of 797070251 is about 927.1831563548.

The spelling of 797070251 in words is "seven hundred ninety-seven million, seventy thousand, two hundred fifty-one".