69820797 has 4 divisors (see below), whose sum is σ = 93094400. Its totient is φ = 46547196.

The previous prime is 69820789. The next prime is 69820823. The reversal of 69820797 is 79702896.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 69820797 - 2³ = 69820789 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 (69820297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11636797 + ... + 11636802.

It is an arithmetic number, because the mean of its divisors is an integer number (23273600).

Almost surely, 2^69820797 is an apocalyptic number.

It is an amenable number.

69820797 is a deficient number, since it is larger than the sum of its proper divisors (23273603).

69820797 is a wasteful number, since it uses less digits than its factorization.

69820797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23273602.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 69820797 is about 8355.8839747809. The cubic root of 69820797 is about 411.7765405406.

The spelling of 69820797 in words is "sixty-nine million, eight hundred twenty thousand, seven hundred ninety-seven".