91322842 has 8 divisors (see below), whose sum is σ = 147521556. Its totient is φ = 42148992.

The previous prime is 91322801. The next prime is 91322843. The reversal of 91322842 is 24822319.

It can be written as a sum of positive squares in 2 ways, for example, as 67420521 + 23902321 = 8211^2 + 4889^2 .

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

It is a super-2 number, since 2×91322842² = 16679722941913928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91322843) 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, 1756183 + ... + 1756234.

Almost surely, 2^91322842 is an apocalyptic number.

91322842 is a deficient number, since it is larger than the sum of its proper divisors (56198714).

91322842 is a wasteful number, since it uses less digits than its factorization.

91322842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512432.

The product of its digits is 6912, while the sum is 31.

The square root of 91322842 is about 9556.2985512174. The cubic root of 91322842 is about 450.3254304425.

The spelling of 91322842 in words is "ninety-one million, three hundred twenty-two thousand, eight hundred forty-two".