91654901 has 8 divisors (see below), whose sum is σ = 99002904. Its totient is φ = 84349440.

The previous prime is 91654897. The next prime is 91654903. The reversal of 91654901 is 10945619.

It can be written as a sum of positive squares in 4 ways, for example, as 3276100 + 88378801 = 1810^2 + 9401^2 .

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 91654901 - 2² = 91654897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91654903) 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, 6080 + ... + 14841.

It is an arithmetic number, because the mean of its divisors is an integer number (12375363).

Almost surely, 2^91654901 is an apocalyptic number.

It is an amenable number.

91654901 is a deficient number, since it is larger than the sum of its proper divisors (7348003).

91654901 is a wasteful number, since it uses less digits than its factorization.

91654901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21271.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 91654901 is about 9573.6566159436. The cubic root of 91654901 is about 450.8705796922.

The spelling of 91654901 in words is "ninety-one million, six hundred fifty-four thousand, nine hundred one".