97654809 has 16 divisors (see below), whose sum is σ = 149519360. Its totient is φ = 55535760.

The previous prime is 97654807. The next prime is 97654829. The reversal of 97654809 is 90845679.

It is not a de Polignac number, because 97654809 - 2¹ = 97654807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97654807) 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 15 ways as a sum of consecutive naturals, for example, 6589 + ... + 15450.

It is an arithmetic number, because the mean of its divisors is an integer number (9344960).

Almost surely, 2^97654809 is an apocalyptic number.

It is an amenable number.

97654809 is a deficient number, since it is larger than the sum of its proper divisors (51864551).

97654809 is a wasteful number, since it uses less digits than its factorization.

97654809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22260.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 97654809 is about 9882.0447782835. The cubic root of 97654809 is about 460.5016722781.

The spelling of 97654809 in words is "ninety-seven million, six hundred fifty-four thousand, eight hundred nine".