99351961 has 16 divisors (see below), whose sum is σ = 107106624. Its totient is φ = 91828224.

The previous prime is 99351953. The next prime is 99352003. The reversal of 99351961 is 16915399.

It is a cyclic number.

It is not a de Polignac number, because 99351961 - 2³ = 99351953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99351061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350926 + ... + 351208.

It is an arithmetic number, because the mean of its divisors is an integer number (6694164).

Almost surely, 2^99351961 is an apocalyptic number.

It is an amenable number.

99351961 is a deficient number, since it is larger than the sum of its proper divisors (7754663).

99351961 is a wasteful number, since it uses less digits than its factorization.

99351961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its digits is 65610, while the sum is 43.

The square root of 99351961 is about 9967.5453848979. The cubic root of 99351961 is about 463.1540661609.

The spelling of 99351961 in words is "ninety-nine million, three hundred fifty-one thousand, nine hundred sixty-one".