96996991 has 8 divisors (see below), whose sum is σ = 119381024. Its totient is φ = 76744800.

The previous prime is 96996979. The next prime is 96996997. The reversal of 96996991 is 19969969.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 96996991 - 2¹³ = 96988799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96996997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532860 + ... + 533041.

It is an arithmetic number, because the mean of its divisors is an integer number (14922628).

Almost surely, 2^96996991 is an apocalyptic number.

96996991 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

96996991 is a deficient number, since it is larger than the sum of its proper divisors (22384033).

96996991 is a wasteful number, since it uses less digits than its factorization.

96996991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065921.

The product of its digits is 2125764, while the sum is 58.

The square root of 96996991 is about 9848.7050417809. The cubic root of 96996991 is about 459.4653381561.

The spelling of 96996991 in words is "ninety-six million, nine hundred ninety-six thousand, nine hundred ninety-one".