97673690 has 8 divisors (see below), whose sum is σ = 175812660. Its totient is φ = 39069472.

The previous prime is 97673669. The next prime is 97673713. The reversal of 97673690 is 9637679.

It is a Cunningham number, because it is equal to 9883²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 97673689 + 1 = 9883^2 + 1^2 .

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

It is a super-2 number, since 2×97673690² = 19080299436432200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4883675 + ... + 4883694.

Almost surely, 2^97673690 is an apocalyptic number.

97673690 is a deficient number, since it is larger than the sum of its proper divisors (78138970).

97673690 is a wasteful number, since it uses less digits than its factorization.

97673690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9767376.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 97673690 is about 9883.0000505919. Note that the first 4 decimals coincide. The cubic root of 97673690 is about 460.5313488223.

The spelling of 97673690 in words is "ninety-seven million, six hundred seventy-three thousand, six hundred ninety".