91005377 has 8 divisors (see below), whose sum is σ = 92476320. Its totient is φ = 89540640.

The previous prime is 91005371. The next prime is 91005389. The reversal of 91005377 is 77350019.

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 91005377 - 2⁴ = 91005361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91005371) 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, 34574 + ... + 37112.

It is an arithmetic number, because the mean of its divisors is an integer number (11559540).

Almost surely, 2^91005377 is an apocalyptic number.

It is an amenable number.

91005377 is a deficient number, since it is larger than the sum of its proper divisors (1470943).

91005377 is a wasteful number, since it uses less digits than its factorization.

91005377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 91005377 is about 9539.6738413847. The cubic root of 91005377 is about 449.8030034853.

The spelling of 91005377 in words is "ninety-one million, five thousand, three hundred seventy-seven".