91620162 has 12 divisors (see below), whose sum is σ = 198510390. Its totient is φ = 30540048.

The previous prime is 91620161. The next prime is 91620163. The reversal of 91620162 is 26102619.

It is an interprime number because it is at equal distance from previous prime (91620161) and next prime (91620163).

It can be written as a sum of positive squares in only one way, i.e., 60047001 + 31573161 = 7749^2 + 5619^2 .

It is not an unprimeable number, because it can be changed into a prime (91620161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2544987 + ... + 2545022.

Almost surely, 2^91620162 is an apocalyptic number.

91620162 is an abundant number, since it is smaller than the sum of its proper divisors (106890228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91620162 is a wasteful number, since it uses less digits than its factorization.

91620162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090017 (or 5090014 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 91620162 is about 9571.8421424510. The cubic root of 91620162 is about 450.8136095715.

The spelling of 91620162 in words is "ninety-one million, six hundred twenty thousand, one hundred sixty-two".