97690 has 8 divisors (see below), whose sum is σ = 175860. Its totient is φ = 39072.

The previous prime is 97687. The next prime is 97711. The reversal of 97690 is 9679.

It can be written as a sum of positive squares in 2 ways, for example, as 95481 + 2209 = 309^2 + 47^2 .

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

It is a super-2 number, since 2×97690² = 19086672200, which contains 22 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4875 + ... + 4894.

2⁹⁷⁶⁹⁰ is an apocalyptic number.

97690 is a deficient number, since it is larger than the sum of its proper divisors (78170).

97690 is a wasteful number, since it uses less digits than its factorization.

97690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9776.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 97690 is about 312.5539953352. The cubic root of 97690 is about 46.0556981273.

It can be divided in two parts, 97 and 690, that added together give a palindrome (787).

The spelling of 97690 in words is "ninety-seven thousand, six hundred ninety".