769280221 has 8 divisors (see below), whose sum is σ = 799359488. Its totient is φ = 739530000.

The previous prime is 769280219. The next prime is 769280233. The reversal of 769280221 is 122082967.

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 769280221 - 2¹ = 769280219 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 (769280521) 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, 77490 + ... + 86851.

It is an arithmetic number, because the mean of its divisors is an integer number (99919936).

Almost surely, 2^769280221 is an apocalyptic number.

It is an amenable number.

769280221 is a deficient number, since it is larger than the sum of its proper divisors (30079267).

769280221 is a wasteful number, since it uses less digits than its factorization.

769280221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164523.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 769280221 is about 27735.9013013819. The cubic root of 769280221 is about 916.2799612876.

The spelling of 769280221 in words is "seven hundred sixty-nine million, two hundred eighty thousand, two hundred twenty-one".