84777963 has 16 divisors (see below), whose sum is σ = 123549696. Its totient is φ = 51477120.

The previous prime is 84777949. The next prime is 84777967. The reversal of 84777963 is 36977748.

It is not a de Polignac number, because 84777963 - 2⁴ = 84777947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (84777967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25231 + ... + 28392.

It is an arithmetic number, because the mean of its divisors is an integer number (7721856).

Almost surely, 2^84777963 is an apocalyptic number.

84777963 is a deficient number, since it is larger than the sum of its proper divisors (38771733).

84777963 is a wasteful number, since it uses less digits than its factorization.

84777963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53674.

The product of its digits is 1778112, while the sum is 51.

The square root of 84777963 is about 9207.4949361919. The cubic root of 84777963 is about 439.2997867582.

The spelling of 84777963 in words is "eighty-four million, seven hundred seventy-seven thousand, nine hundred sixty-three".