91346381 has 8 divisors (see below), whose sum is σ = 104462400. Its totient is φ = 78247008.

The previous prime is 91346371. The next prime is 91346407. The reversal of 91346381 is 18364319.

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

It is not a de Polignac number, because 91346381 - 2¹⁰ = 91345357 is a prime.

It is a super-2 number, since 2×91346381² = 16688322643594322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91346351) 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, 11585 + ... + 17801.

It is an arithmetic number, because the mean of its divisors is an integer number (13057800).

Almost surely, 2^91346381 is an apocalyptic number.

It is an amenable number.

91346381 is a deficient number, since it is larger than the sum of its proper divisors (13116019).

91346381 is a wasteful number, since it uses less digits than its factorization.

91346381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8323.

The product of its digits is 15552, while the sum is 35.

The square root of 91346381 is about 9557.5300679621. The cubic root of 91346381 is about 450.3641184620.

The spelling of 91346381 in words is "ninety-one million, three hundred forty-six thousand, three hundred eighty-one".