91350634 has 4 divisors (see below), whose sum is σ = 137025954. Its totient is φ = 45675316.

The previous prime is 91350631. The next prime is 91350643. The reversal of 91350634 is 43605319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43605319 = 137 ⋅318287.

It can be written as a sum of positive squares in only one way, i.e., 90535225 + 815409 = 9515^2 + 903^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91350596 and 91350605.

It is not an unprimeable number, because it can be changed into a prime (91350631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22837657 + ... + 22837660.

Almost surely, 2^91350634 is an apocalyptic number.

91350634 is a deficient number, since it is larger than the sum of its proper divisors (45675320).

91350634 is a wasteful number, since it uses less digits than its factorization.

91350634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45675319.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 91350634 is about 9557.7525600949. The cubic root of 91350634 is about 450.3711078609.

The spelling of 91350634 in words is "ninety-one million, three hundred fifty thousand, six hundred thirty-four".