423778827 has 16 divisors (see below), whose sum is σ = 591575040. Its totient is φ = 269486112.

The previous prime is 423778799. The next prime is 423778847. The reversal of 423778827 is 728877324.

It is not a de Polignac number, because 423778827 - 2¹⁸ = 423516683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423778847) 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, 22123 + ... + 36564.

It is an arithmetic number, because the mean of its divisors is an integer number (36973440).

Almost surely, 2^423778827 is an apocalyptic number.

423778827 is a deficient number, since it is larger than the sum of its proper divisors (167796213).

423778827 is a wasteful number, since it uses less digits than its factorization.

423778827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58802.

The product of its digits is 1053696, while the sum is 48.

The square root of 423778827 is about 20585.8890262238. The cubic root of 423778827 is about 751.1265009249.

The spelling of 423778827 in words is "four hundred twenty-three million, seven hundred seventy-eight thousand, eight hundred twenty-seven".