96778121 has 4 divisors (see below), whose sum is σ = 105576144. Its totient is φ = 87980100.

The previous prime is 96778117. The next prime is 96778139. The reversal of 96778121 is 12187769.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 96778121 - 2² = 96778117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (96778151) 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, 4398995 + ... + 4399016.

It is an arithmetic number, because the mean of its divisors is an integer number (26394036).

Almost surely, 2^96778121 is an apocalyptic number.

It is an amenable number.

96778121 is a deficient number, since it is larger than the sum of its proper divisors (8798023).

96778121 is a wasteful number, since it uses less digits than its factorization.

96778121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8798022.

The product of its digits is 42336, while the sum is 41.

The square root of 96778121 is about 9837.5871533624. The cubic root of 96778121 is about 459.1194892403.

The spelling of 96778121 in words is "ninety-six million, seven hundred seventy-eight thousand, one hundred twenty-one".