822020731 has 16 divisors (see below), whose sum is σ = 994389760. Its totient is φ = 663798240.

The previous prime is 822020701. The next prime is 822020753. The reversal of 822020731 is 137020228.

It is not a de Polignac number, because 822020731 - 2¹³ = 822012539 is a prime.

It is a super-2 number, since 2×822020731² = 1351436164387548722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 822020696 and 822020705.

It is not an unprimeable number, because it can be changed into a prime (822020701) 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, 7000 + ... + 41146.

It is an arithmetic number, because the mean of its divisors is an integer number (62149360).

Almost surely, 2^822020731 is an apocalyptic number.

822020731 is a deficient number, since it is larger than the sum of its proper divisors (172369029).

822020731 is a wasteful number, since it uses less digits than its factorization.

822020731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34354.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 822020731 is about 28670.9039097131. The cubic root of 822020731 is about 936.7583870337.

Adding to 822020731 its reverse (137020228), we get a palindrome (959040959).

The spelling of 822020731 in words is "eight hundred twenty-two million, twenty thousand, seven hundred thirty-one".