91420202 has 8 divisors (see below), whose sum is σ = 137820000. Its totient is φ = 45480204.

The previous prime is 91420159. The next prime is 91420207. The reversal of 91420202 is 20202419.

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

It is not an unprimeable number, because it can be changed into a prime (91420207) 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, 114452 + ... + 115247.

It is an arithmetic number, because the mean of its divisors is an integer number (17227500).

Almost surely, 2^91420202 is an apocalyptic number.

91420202 is a deficient number, since it is larger than the sum of its proper divisors (46399798).

91420202 is a wasteful number, since it uses less digits than its factorization.

91420202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229900.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 91420202 is about 9561.3912167634. The cubic root of 91420202 is about 450.4854054333.

The spelling of 91420202 in words is "ninety-one million, four hundred twenty thousand, two hundred two".