91600049 has 8 divisors (see below), whose sum is σ = 94321320. Its totient is φ = 88891776.

The previous prime is 91600043. The next prime is 91600057. The reversal of 91600049 is 94000619.

It can be written as a sum of positive squares in 4 ways, for example, as 29899024 + 61701025 = 5468^2 + 7855^2 .

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 91600049 - 2⁸ = 91599793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91599994 and 91600030.

It is not an unprimeable number, because it can be changed into a prime (91600043) 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, 12107 + ... + 18159.

It is an arithmetic number, because the mean of its divisors is an integer number (11790165).

Almost surely, 2^91600049 is an apocalyptic number.

It is an amenable number.

91600049 is a deficient number, since it is larger than the sum of its proper divisors (2721271).

91600049 is a wasteful number, since it uses less digits than its factorization.

91600049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 91600049 is about 9570.7914510766. The cubic root of 91600049 is about 450.7806187337.

It can be divided in two parts, 9 and 1600049, that multiplied together give a palindrome (14400441).

The spelling of 91600049 in words is "ninety-one million, six hundred thousand, forty-nine".