84807801 has 12 divisors (see below), whose sum is σ = 131923428. Its totient is φ = 52189344.

The previous prime is 84807797. The next prime is 84807809. The reversal of 84807801 is 10870848.

It can be written as a sum of positive squares in 2 ways, for example, as 37197801 + 47610000 = 6099^2 + 6900^2 .

It is not a de Polignac number, because 84807801 - 2² = 84807797 is a prime.

It is a super-2 number, since 2×84807801² = 14384726220911202, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (84807809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362310 + ... + 362543.

It is an arithmetic number, because the mean of its divisors is an integer number (10993619).

Almost surely, 2^84807801 is an apocalyptic number.

It is an amenable number.

84807801 is a deficient number, since it is larger than the sum of its proper divisors (47115627).

84807801 is a wasteful number, since it uses less digits than its factorization.

84807801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724872 (or 724869 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 84807801 is about 9209.1151040694. The cubic root of 84807801 is about 439.3513185836.

The spelling of 84807801 in words is "eighty-four million, eight hundred seven thousand, eight hundred one".