97091847 has 12 divisors (see below), whose sum is σ = 140331880. Its totient is φ = 64687248.

The previous prime is 97091837. The next prime is 97091849. The reversal of 97091847 is 74819079.

It is not a de Polignac number, because 97091847 - 2¹⁰ = 97090823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97091849) 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 11 ways as a sum of consecutive naturals, for example, 20904 + ... + 25122.

Almost surely, 2^97091847 is an apocalyptic number.

97091847 is a deficient number, since it is larger than the sum of its proper divisors (43240033).

97091847 is a wasteful number, since it uses less digits than its factorization.

97091847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782 (or 6779 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 97091847 is about 9853.5195235002. The cubic root of 97091847 is about 459.6150639169.

The spelling of 97091847 in words is "ninety-seven million, ninety-one thousand, eight hundred forty-seven".