820037652 has 24 divisors (see below), whose sum is σ = 2186767296. Its totient is φ = 234296448.

The previous prime is 820037651. The next prime is 820037657. The reversal of 820037652 is 256730028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820037651) 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, 4881093 + ... + 4881260.

It is an arithmetic number, because the mean of its divisors is an integer number (91115304).

Almost surely, 2^820037652 is an apocalyptic number.

It is an amenable number.

820037652 is an abundant number, since it is smaller than the sum of its proper divisors (1366729644).

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

820037652 is a wasteful number, since it uses less digits than its factorization.

820037652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9762367 (or 9762365 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 820037652 is about 28636.2995514434. The cubic root of 820037652 is about 936.0044880711.

The spelling of 820037652 in words is "eight hundred twenty million, thirty-seven thousand, six hundred fifty-two".