91730626 has 8 divisors (see below), whose sum is σ = 148180284. Its totient is φ = 42337200.

The previous prime is 91730621. The next prime is 91730627. The reversal of 91730626 is 62603719.

It can be written as a sum of positive squares in 2 ways, for example, as 79121025 + 12609601 = 8895^2 + 3551^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 91730591 and 91730600.

It is not an unprimeable number, because it can be changed into a prime (91730621) 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, 1764025 + ... + 1764076.

Almost surely, 2^91730626 is an apocalyptic number.

91730626 is a deficient number, since it is larger than the sum of its proper divisors (56449658).

91730626 is a wasteful number, since it uses less digits than its factorization.

91730626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528116.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 91730626 is about 9577.6106623729. The cubic root of 91730626 is about 450.9947148116.

The spelling of 91730626 in words is "ninety-one million, seven hundred thirty thousand, six hundred twenty-six".