797729251 has 8 divisors (see below), whose sum is σ = 891476208. Its totient is φ = 707520000.

The previous prime is 797729243. The next prime is 797729297. The reversal of 797729251 is 152927797.

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

It is not a de Polignac number, because 797729251 - 2³ = 797729243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 797729195 and 797729204.

It is not an unprimeable number, because it can be changed into a prime (797729221) 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, 883950 + ... + 884851.

It is an arithmetic number, because the mean of its divisors is an integer number (111434526).

Almost surely, 2^797729251 is an apocalyptic number.

797729251 is a deficient number, since it is larger than the sum of its proper divisors (93746957).

797729251 is a wasteful number, since it uses less digits than its factorization.

797729251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768853.

The product of its digits is 555660, while the sum is 49.

The square root of 797729251 is about 28244.1011717491. The cubic root of 797729251 is about 927.4386107876.

The spelling of 797729251 in words is "seven hundred ninety-seven million, seven hundred twenty-nine thousand, two hundred fifty-one".