91944196 has 6 divisors (see below), whose sum is σ = 160902350. Its totient is φ = 45972096.

The previous prime is 91944161. The next prime is 91944197. The reversal of 91944196 is 69144919.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 89984196 + 1960000 = 9486^2 + 1400^2 .

It is not an unprimeable number, because it can be changed into a prime (91944197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11493021 + ... + 11493028.

Almost surely, 2^91944196 is an apocalyptic number.

It is an amenable number.

91944196 is a deficient number, since it is larger than the sum of its proper divisors (68958154).

91944196 is a wasteful number, since it uses less digits than its factorization.

91944196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22986053 (or 22986051 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 91944196 is about 9588.7536207789. The cubic root of 91944196 is about 451.3444500131.

The spelling of 91944196 in words is "ninety-one million, nine hundred forty-four thousand, one hundred ninety-six".