91649411 has 8 divisors (see below), whose sum is σ = 109296384. Its totient is φ = 75141000.

The previous prime is 91649377. The next prime is 91649413. The reversal of 91649411 is 11494619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91649411 - 2¹⁰ = 91648387 is a prime.

It is a super-2 number, since 2×91649411² = 16799229073293842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91649413) 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, 284465 + ... + 284786.

It is an arithmetic number, because the mean of its divisors is an integer number (13662048).

Almost surely, 2^91649411 is an apocalyptic number.

91649411 is a deficient number, since it is larger than the sum of its proper divisors (17646973).

91649411 is a wasteful number, since it uses less digits than its factorization.

91649411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569281.

The product of its digits is 7776, while the sum is 35.

The square root of 91649411 is about 9573.3698873490. The cubic root of 91649411 is about 450.8615773407.

The spelling of 91649411 in words is "ninety-one million, six hundred forty-nine thousand, four hundred eleven".