820462203 has 20 divisors (see below), whose sum is σ = 1337050968. Its totient is φ = 497249280.

The previous prime is 820462169. The next prime is 820462241. The reversal of 820462203 is 302264028.

It is not a de Polignac number, because 820462203 - 2¹⁶ = 820396667 is a prime.

It is a super-2 number, since 2×820462203² = 1346316453103226418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (820462273) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 459526 + ... + 461307.

Almost surely, 2^820462203 is an apocalyptic number.

820462203 is a deficient number, since it is larger than the sum of its proper divisors (516588765).

820462203 is a wasteful number, since it uses less digits than its factorization.

820462203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920856 (or 920847 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 820462203 is about 28643.7114040761. The cubic root of 820462203 is about 936.1659900389.

It can be divided in two parts, 8204 and 62203, that added together give a palindrome (70407).

The spelling of 820462203 in words is "eight hundred twenty million, four hundred sixty-two thousand, two hundred three".