96797991 has 4 divisors (see below), whose sum is σ = 129063992. Its totient is φ = 64531992.

The previous prime is 96797977. The next prime is 96798001. The reversal of 96797991 is 19979769.

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

It is not a de Polignac number, because 96797991 - 2⁵ = 96797959 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 (96797941) 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, 16132996 + ... + 16133001.

It is an arithmetic number, because the mean of its divisors is an integer number (32265998).

Almost surely, 2^96797991 is an apocalyptic number.

96797991 is a deficient number, since it is larger than the sum of its proper divisors (32266001).

96797991 is a wasteful number, since it uses less digits than its factorization.

96797991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32266000.

The product of its digits is 1928934, while the sum is 57.

The square root of 96797991 is about 9838.5970036383. The cubic root of 96797991 is about 459.1509084629.

The spelling of 96797991 in words is "ninety-six million, seven hundred ninety-seven thousand, nine hundred ninety-one".