97654375009 has 9 divisors (see below), whose sum is σ = 98415529401. Its totient is φ = 96899069760.

The previous prime is 97654375003. The next prime is 97654375037. The reversal of 97654375009 is 90057345679.

The square root of 97654375009 is 312497.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3483950625 + 94170424384 = 59025^2 + 306872^2 .

It is not a de Polignac number, because 97654375009 - 2²⁷ = 97520157281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97654375003) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42810949 + ... + 42813229.

Almost surely, 2^97654375009 is an apocalyptic number.

97654375009 is the 312497-th square number.

97654375009 is the 156249-th centered octagonal number.

It is an amenable number.

97654375009 is a deficient number, since it is larger than the sum of its proper divisors (761154392).

97654375009 is an frugal number, since it uses more digits than its factorization.

97654375009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4836 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 55.

The spelling of 97654375009 in words is "ninety-seven billion, six hundred fifty-four million, three hundred seventy-five thousand, nine".