97678927 has 4 divisors (see below), whose sum is σ = 100318936. Its totient is φ = 95038920.

The previous prime is 97678921. The next prime is 97678939. The reversal of 97678927 is 72987679.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97678927 - 2¹¹ = 97676879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97678921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319949 + ... + 1320022.

It is an arithmetic number, because the mean of its divisors is an integer number (25079734).

Almost surely, 2^97678927 is an apocalyptic number.

97678927 is a deficient number, since it is larger than the sum of its proper divisors (2640009).

97678927 is a wasteful number, since it uses less digits than its factorization.

97678927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640008.

The product of its digits is 2667168, while the sum is 55.

The square root of 97678927 is about 9883.2649969532. The cubic root of 97678927 is about 460.5395794918.

The spelling of 97678927 in words is "ninety-seven million, six hundred seventy-eight thousand, nine hundred twenty-seven".