91249429 has 4 divisors (see below), whose sum is σ = 91446976. Its totient is φ = 91051884.

The previous prime is 91249427. The next prime is 91249439. The reversal of 91249429 is 92494219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91249429 - 2¹ = 91249427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91249391 and 91249400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91249423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98079 + ... + 99004.

It is an arithmetic number, because the mean of its divisors is an integer number (22861744).

Almost surely, 2^91249429 is an apocalyptic number.

It is an amenable number.

91249429 is a deficient number, since it is larger than the sum of its proper divisors (197547).

91249429 is a wasteful number, since it uses less digits than its factorization.

91249429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197546.

The product of its digits is 46656, while the sum is 40.

The square root of 91249429 is about 9552.4566997187. The cubic root of 91249429 is about 450.2047282436.

The spelling of 91249429 in words is "ninety-one million, two hundred forty-nine thousand, four hundred twenty-nine".