91424349 has 8 divisors (see below), whose sum is σ = 135443520. Its totient is φ = 60949548.

The previous prime is 91424339. The next prime is 91424369. The reversal of 91424349 is 94342419.

It is not a de Polignac number, because 91424349 - 2¹² = 91420253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91424339) 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, 1693017 + ... + 1693070.

It is an arithmetic number, because the mean of its divisors is an integer number (16930440).

Almost surely, 2^91424349 is an apocalyptic number.

It is an amenable number.

91424349 is a deficient number, since it is larger than the sum of its proper divisors (44019171).

91424349 is a wasteful number, since it uses less digits than its factorization.

91424349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386096 (or 3386090 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 91424349 is about 9561.6080760508. The cubic root of 91424349 is about 450.4922169647.

The spelling of 91424349 in words is "ninety-one million, four hundred twenty-four thousand, three hundred forty-nine".