97851651 has 8 divisors (see below), whose sum is σ = 130586640. Its totient is φ = 65175552.

The previous prime is 97851647. The next prime is 97851659. The reversal of 97851651 is 15615879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97851651 - 2² = 97851647 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (97851659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10686 + ... + 17603.

It is an arithmetic number, because the mean of its divisors is an integer number (16323330).

Almost surely, 2^97851651 is an apocalyptic number.

97851651 is a deficient number, since it is larger than the sum of its proper divisors (32734989).

97851651 is a wasteful number, since it uses less digits than its factorization.

97851651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29445.

The product of its digits is 75600, while the sum is 42.

The square root of 97851651 is about 9891.9993429033. Note that the first 3 decimals coincide. The cubic root of 97851651 is about 460.8108744374.

The spelling of 97851651 in words is "ninety-seven million, eight hundred fifty-one thousand, six hundred fifty-one".