69420897 has 36 divisors (see below), whose sum is σ = 125629140. Its totient is φ = 36614592.

The previous prime is 69420893. The next prime is 69420931. The reversal of 69420897 is 79802496.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46294416 + 23126481 = 6804^2 + 4809^2 .

It is not a de Polignac number, because 69420897 - 2² = 69420893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69420893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 322 + ... + 11787.

Almost surely, 2^69420897 is an apocalyptic number.

It is an amenable number.

69420897 is a deficient number, since it is larger than the sum of its proper divisors (56208243).

69420897 is a wasteful number, since it uses less digits than its factorization.

69420897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12142 (or 12132 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 69420897 is about 8331.9203668782. The cubic root of 69420897 is about 410.9888820762.

The spelling of 69420897 in words is "sixty-nine million, four hundred twenty thousand, eight hundred ninety-seven".