91227598247 has 8 divisors (see below), whose sum is σ = 92202781680. Its totient is φ = 90253825600.

The previous prime is 91227598223. The next prime is 91227598249. The reversal of 91227598247 is 74289572219.

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

It is a cyclic number.

It is not a de Polignac number, because 91227598247 - 2⁶ = 91227598183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91227598192 and 91227598201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91227598249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222422 + ... + 481587.

It is an arithmetic number, because the mean of its divisors is an integer number (11525347710).

Almost surely, 2^91227598247 is an apocalyptic number.

91227598247 is a deficient number, since it is larger than the sum of its proper divisors (975183433).

91227598247 is a wasteful number, since it uses less digits than its factorization.

91227598247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705393.

The product of its digits is 5080320, while the sum is 56.

The spelling of 91227598247 in words is "ninety-one billion, two hundred twenty-seven million, five hundred ninety-eight thousand, two hundred forty-seven".