91646697 has 8 divisors (see below), whose sum is σ = 127508544. Its totient is φ = 58441328.

The previous prime is 91646657. The next prime is 91646707. The reversal of 91646697 is 79664619.

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 91646697 - 2¹² = 91642601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91646657) 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, 664038 + ... + 664175.

It is an arithmetic number, because the mean of its divisors is an integer number (15938568).

Almost surely, 2^91646697 is an apocalyptic number.

It is an amenable number.

91646697 is a deficient number, since it is larger than the sum of its proper divisors (35861847).

91646697 is a wasteful number, since it uses less digits than its factorization.

91646697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328239.

The product of its digits is 489888, while the sum is 48.

The square root of 91646697 is about 9573.2281389299. The cubic root of 91646697 is about 450.8571268651.

The spelling of 91646697 in words is "ninety-one million, six hundred forty-six thousand, six hundred ninety-seven".