97579147 has 2 divisors, whose sum is σ = 97579148. Its totient is φ = 97579146.

The previous prime is 97579129. The next prime is 97579151. The reversal of 97579147 is 74197579.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97579147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97579147.

It is not a weakly prime, because it can be changed into another prime (97579127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48789573 + 48789574.

It is an arithmetic number, because the mean of its divisors is an integer number (48789574).

Almost surely, 2^97579147 is an apocalyptic number.

97579147 is a deficient number, since it is larger than the sum of its proper divisors (1).

97579147 is an equidigital number, since it uses as much as digits as its factorization.

97579147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 49.

The square root of 97579147 is about 9878.2157801903. The cubic root of 97579147 is about 460.3827108045.

The spelling of 97579147 in words is "ninety-seven million, five hundred seventy-nine thousand, one hundred forty-seven".