97679999 has 8 divisors (see below), whose sum is σ = 100317840. Its totient is φ = 95054400.

The previous prime is 97679993. The next prime is 97680001. The reversal of 97679999 is 99997679.

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

It is not a de Polignac number, because 97679999 - 2⁴ = 97679983 is a prime.

It is a Duffinian number.

97679999 is a modest number, since divided by 9999 gives 9767 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97679993) 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, 14432 + ... + 20090.

It is an arithmetic number, because the mean of its divisors is an integer number (12539730).

Almost surely, 2^97679999 is an apocalyptic number.

97679999 is a deficient number, since it is larger than the sum of its proper divisors (2637841).

97679999 is a wasteful number, since it uses less digits than its factorization.

97679999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121.

The product of its digits is 17360406, while the sum is 65.

The square root of 97679999 is about 9883.3192298944. The cubic root of 97679999 is about 460.5412642517.

The spelling of 97679999 in words is "ninety-seven million, six hundred seventy-nine thousand, nine hundred ninety-nine".