91449429 has 4 divisors (see below), whose sum is σ = 121932576. Its totient is φ = 60966284.

The previous prime is 91449419. The next prime is 91449437. The reversal of 91449429 is 92494419.

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 91449429 - 2⁷ = 91449301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91449419) 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, 15241569 + ... + 15241574.

It is an arithmetic number, because the mean of its divisors is an integer number (30483144).

Almost surely, 2^91449429 is an apocalyptic number.

It is an amenable number.

91449429 is a deficient number, since it is larger than the sum of its proper divisors (30483147).

91449429 is a wasteful number, since it uses less digits than its factorization.

91449429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30483146.

The product of its digits is 93312, while the sum is 42.

The square root of 91449429 is about 9562.9194809953. The cubic root of 91449429 is about 450.5334069830.

The spelling of 91449429 in words is "ninety-one million, four hundred forty-nine thousand, four hundred twenty-nine".