91669054 has 8 divisors (see below), whose sum is σ = 141220008. Its totient is φ = 44595720.

The previous prime is 91669043. The next prime is 91669057. The reversal of 91669054 is 45096619.

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

It is a super-2 number, since 2×91669054² = 16806430922509832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91668998 and 91669016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91669057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619312 + ... + 619459.

It is an arithmetic number, because the mean of its divisors is an integer number (17652501).

Almost surely, 2^91669054 is an apocalyptic number.

91669054 is a deficient number, since it is larger than the sum of its proper divisors (49550954).

91669054 is a wasteful number, since it uses less digits than its factorization.

91669054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238810.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 91669054 is about 9574.3957511688. The cubic root of 91669054 is about 450.8937857358.

The spelling of 91669054 in words is "ninety-one million, six hundred sixty-nine thousand, fifty-four".