97708947 has 8 divisors (see below), whose sum is σ = 148889856. Its totient is φ = 55833672.

The previous prime is 97708939. The next prime is 97708951. The reversal of 97708947 is 74980779.

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

It is not a de Polignac number, because 97708947 - 2³ = 97708939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97708947.

It is not an unprimeable number, because it can be changed into a prime (97708927) 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, 2326383 + ... + 2326424.

It is an arithmetic number, because the mean of its divisors is an integer number (18611232).

Almost surely, 2^97708947 is an apocalyptic number.

97708947 is a deficient number, since it is larger than the sum of its proper divisors (51180909).

97708947 is a wasteful number, since it uses less digits than its factorization.

97708947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652817.

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 97708947 is about 9884.7836091641. The cubic root of 97708947 is about 460.5867543960.

The spelling of 97708947 in words is "ninety-seven million, seven hundred eight thousand, nine hundred forty-seven".