91080577 has 8 divisors (see below), whose sum is σ = 110215296. Its totient is φ = 73476672.

The previous prime is 91080551. The next prime is 91080581. The reversal of 91080577 is 77508019.

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 91080577 - 2¹⁹ = 90556289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91080527) 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, 382573 + ... + 382810.

It is an arithmetic number, because the mean of its divisors is an integer number (13776912).

Almost surely, 2^91080577 is an apocalyptic number.

It is an amenable number.

91080577 is a deficient number, since it is larger than the sum of its proper divisors (19134719).

91080577 is a wasteful number, since it uses less digits than its factorization.

91080577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765407.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 91080577 is about 9543.6144620369. The cubic root of 91080577 is about 449.9268638344.

The spelling of 91080577 in words is "ninety-one million, eighty thousand, five hundred seventy-seven".