84746491 has 4 divisors (see below), whose sum is σ = 86011432. Its totient is φ = 83481552.

The previous prime is 84746489. The next prime is 84746531. The reversal of 84746491 is 19464748.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84746491 - 2¹ = 84746489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84746791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632370 + ... + 632503.

It is an arithmetic number, because the mean of its divisors is an integer number (21502858).

Almost surely, 2^84746491 is an apocalyptic number.

84746491 is a deficient number, since it is larger than the sum of its proper divisors (1264941).

84746491 is a wasteful number, since it uses less digits than its factorization.

84746491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264940.

The product of its digits is 193536, while the sum is 43.

The square root of 84746491 is about 9205.7857350690. The cubic root of 84746491 is about 439.2454198230.

The spelling of 84746491 in words is "eighty-four million, seven hundred forty-six thousand, four hundred ninety-one".