97822020 has 24 divisors (see below), whose sum is σ = 273901824. Its totient is φ = 26085856.

The previous prime is 97822003. The next prime is 97822027. The reversal of 97822020 is 2022879.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (97822027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815124 + ... + 815243.

It is an arithmetic number, because the mean of its divisors is an integer number (11412576).

Almost surely, 2^97822020 is an apocalyptic number.

It is an amenable number.

97822020 is an abundant number, since it is smaller than the sum of its proper divisors (176079804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97822020 is a wasteful number, since it uses less digits than its factorization.

97822020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630379 (or 1630377 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 97822020 is about 9890.5015039683. The cubic root of 97822020 is about 460.7643561779.

Adding to 97822020 its reverse (2022879), we get a palindrome (99844899).

The spelling of 97822020 in words is "ninety-seven million, eight hundred twenty-two thousand, twenty".