84660761 has 4 divisors (see below), whose sum is σ = 84752052. Its totient is φ = 84569472.

The previous prime is 84660749. The next prime is 84660787. The reversal of 84660761 is 16706648.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1577536 + 83083225 = 1256^2 + 9115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84660761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84660701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44240 + ... + 46113.

It is an arithmetic number, because the mean of its divisors is an integer number (21188013).

Almost surely, 2^84660761 is an apocalyptic number.

It is an amenable number.

84660761 is a deficient number, since it is larger than the sum of its proper divisors (91291).

84660761 is an equidigital number, since it uses as much as digits as its factorization.

84660761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91290.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 84660761 is about 9201.1282460359. The cubic root of 84660761 is about 439.0972555180.

The spelling of 84660761 in words is "eighty-four million, six hundred sixty thousand, seven hundred sixty-one".