84822901 has 4 divisors (see below), whose sum is σ = 84949612. Its totient is φ = 84696192.

The previous prime is 84822887. The next prime is 84822937. The reversal of 84822901 is 10922848.

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 19131876 + 65691025 = 4374^2 + 8105^2 .

It is a cyclic number.

It is not a de Polignac number, because 84822901 - 2¹⁵ = 84790133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84822971) 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, 62346 + ... + 63691.

It is an arithmetic number, because the mean of its divisors is an integer number (21237403).

Almost surely, 2^84822901 is an apocalyptic number.

It is an amenable number.

84822901 is a deficient number, since it is larger than the sum of its proper divisors (126711).

84822901 is a wasteful number, since it uses less digits than its factorization.

84822901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126710.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 84822901 is about 9209.9349074790. The cubic root of 84822901 is about 439.3773924869.

The spelling of 84822901 in words is "eighty-four million, eight hundred twenty-two thousand, nine hundred one".