91854851 has 6 divisors (see below), whose sum is σ = 100964556. Its totient is φ = 83504300.

The previous prime is 91854839. The next prime is 91854857. The reversal of 91854851 is 15845819.

It is not a de Polignac number, because 91854851 - 2⁶ = 91854787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91854799 and 91854808.

It is not an unprimeable number, because it can be changed into a prime (91854857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379445 + ... + 379686.

It is an arithmetic number, because the mean of its divisors is an integer number (16827426).

Almost surely, 2^91854851 is an apocalyptic number.

91854851 is a deficient number, since it is larger than the sum of its proper divisors (9109705).

91854851 is a wasteful number, since it uses less digits than its factorization.

91854851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759153 (or 759142 counting only the distinct ones).

The product of its digits is 57600, while the sum is 41.

The square root of 91854851 is about 9584.0936452019. The cubic root of 91854851 is about 451.1982075440.

The spelling of 91854851 in words is "ninety-one million, eight hundred fifty-four thousand, eight hundred fifty-one".