84405763 has 4 divisors (see below), whose sum is σ = 90898528. Its totient is φ = 77913000.

The previous prime is 84405751. The next prime is 84405767. The reversal of 84405763 is 36750448.

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 84405763 - 2²⁵ = 50851331 is a prime.

It is a super-2 number, since 2×84405763² = 14248665655224338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84405767) 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, 3246363 + ... + 3246388.

It is an arithmetic number, because the mean of its divisors is an integer number (22724632).

Almost surely, 2^84405763 is an apocalyptic number.

84405763 is a deficient number, since it is larger than the sum of its proper divisors (6492765).

84405763 is a wasteful number, since it uses less digits than its factorization.

84405763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6492764.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 84405763 is about 9187.2609084536. The cubic root of 84405763 is about 438.6559588818.

The spelling of 84405763 in words is "eighty-four million, four hundred five thousand, seven hundred sixty-three".