91422629 has 4 divisors (see below), whose sum is σ = 91457184. Its totient is φ = 91388076.

The previous prime is 91422613. The next prime is 91422637. The reversal of 91422629 is 92622419.

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 91422629 - 2⁴ = 91422613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91422659) 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, 12947 + ... + 18720.

It is an arithmetic number, because the mean of its divisors is an integer number (22864296).

Almost surely, 2^91422629 is an apocalyptic number.

It is an amenable number.

91422629 is a deficient number, since it is larger than the sum of its proper divisors (34555).

91422629 is a wasteful number, since it uses less digits than its factorization.

91422629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34554.

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

The square root of 91422629 is about 9561.5181325980. The cubic root of 91422629 is about 450.4893918549.

The spelling of 91422629 in words is "ninety-one million, four hundred twenty-two thousand, six hundred twenty-nine".