97650001 has 4 divisors (see below), whose sum is σ = 97790004. Its totient is φ = 97510000.

The previous prime is 97649963. The next prime is 97650041. The reversal of 97650001 is 10005679.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87890625 + 9759376 = 9375^2 + 3124^2 .

It is a cyclic number.

It is not a de Polignac number, because 97650001 - 2¹³ = 97641809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97650041) 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 3 ways as a sum of consecutive naturals, for example, 68950 + ... + 70351.

It is an arithmetic number, because the mean of its divisors is an integer number (24447501).

Almost surely, 2^97650001 is an apocalyptic number.

It is an amenable number.

97650001 is a deficient number, since it is larger than the sum of its proper divisors (140003).

97650001 is a wasteful number, since it uses less digits than its factorization.

97650001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140002.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 97650001 is about 9881.8015057984. The cubic root of 97650001 is about 460.4941146084.

The spelling of 97650001 in words is "ninety-seven million, six hundred fifty thousand, one".