97785147 has 8 divisors (see below), whose sum is σ = 130595344. Its totient is φ = 65082528.

The previous prime is 97785133. The next prime is 97785151. The reversal of 97785147 is 74158779.

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

It is not a de Polignac number, because 97785147 - 2⁴ = 97785131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97785096 and 97785105.

It is not an unprimeable number, because it can be changed into a prime (97785847) 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, 24748 + ... + 28425.

It is an arithmetic number, because the mean of its divisors is an integer number (16324418).

Almost surely, 2^97785147 is an apocalyptic number.

97785147 is a deficient number, since it is larger than the sum of its proper divisors (32810197).

97785147 is a wasteful number, since it uses less digits than its factorization.

97785147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53789.

The product of its digits is 493920, while the sum is 48.

The square root of 97785147 is about 9888.6372670859. The cubic root of 97785147 is about 460.7064554474.

The spelling of 97785147 in words is "ninety-seven million, seven hundred eighty-five thousand, one hundred forty-seven".