99951797 has 8 divisors (see below), whose sum is σ = 109175040. Its totient is φ = 90751360.

The previous prime is 99951779. The next prime is 99951811. The reversal of 99951797 is 79715999.

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 99951797 - 2¹⁶ = 99886261 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 (99951707) 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, 4229 + ... + 14757.

It is an arithmetic number, because the mean of its divisors is an integer number (13646880).

Almost surely, 2^99951797 is an apocalyptic number.

It is an amenable number.

99951797 is a deficient number, since it is larger than the sum of its proper divisors (9223243).

99951797 is a wasteful number, since it uses less digits than its factorization.

99951797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11403.

The product of its digits is 1607445, while the sum is 56.

The square root of 99951797 is about 9997.5895594888. The cubic root of 99951797 is about 464.0842918727.

The spelling of 99951797 in words is "ninety-nine million, nine hundred fifty-one thousand, seven hundred ninety-seven".