96947991 has 48 divisors (see below), whose sum is σ = 170995968. Its totient is φ = 51667200.

The previous prime is 96947933. The next prime is 96947993. The reversal of 96947991 is 19974969.

It is not a de Polignac number, because 96947991 - 2⁹ = 96947479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96947993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139956 + ... + 140646.

It is an arithmetic number, because the mean of its divisors is an integer number (3562416).

Almost surely, 2^96947991 is an apocalyptic number.

96947991 is a deficient number, since it is larger than the sum of its proper divisors (74047977).

96947991 is a wasteful number, since it uses less digits than its factorization.

96947991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 849 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The square root of 96947991 is about 9846.2170908426. The cubic root of 96947991 is about 459.3879557085.

The spelling of 96947991 in words is "ninety-six million, nine hundred forty-seven thousand, nine hundred ninety-one".