97731667 has 8 divisors (see below), whose sum is σ = 106690752. Its totient is φ = 88785000.

The previous prime is 97731661. The next prime is 97731709. The reversal of 97731667 is 76613779.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97731667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97731661) 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 in 7 ways as a sum of consecutive naturals, for example, 22788 + ... + 26734.

It is an arithmetic number, because the mean of its divisors is an integer number (13336344).

Almost surely, 2^97731667 is an apocalyptic number.

97731667 is a deficient number, since it is larger than the sum of its proper divisors (8959085).

97731667 is a wasteful number, since it uses less digits than its factorization.

97731667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6209.

The product of its digits is 333396, while the sum is 46.

The square root of 97731667 is about 9885.9327835061. The cubic root of 97731667 is about 460.6224512979.

The spelling of 97731667 in words is "ninety-seven million, seven hundred thirty-one thousand, six hundred sixty-seven".