499477801 has 3 divisors (see below), whose sum is σ = 499500151.
Its totient is φ = 499455452.
The previous prime is 499477793. The next prime is 499477807. The reversal of 499477801 is 108774994.
Multipling 499477801 by its sum of digits (49), we get a square (24474412249 = 1564432).
The square root of 499477801 is 22349.
It is a perfect power (a square), and thus also a powerful number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 108774994 = 2 ⋅54387497.
It can be written as a sum of positive squares in only one way, i.e., 79227801 + 420250000 = 8901^2 + 20500^2
It is not a de Polignac number, because 499477801 - 23 = 499477793 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (499477807) by changing a digit.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11175 + ... + 33523.
Almost surely, 2499477801 is an apocalyptic number.
499477801 is the 22349-th square number.
499477801 is the 11175-th centered octagonal number.
It is an amenable number.
499477801 is a deficient number, since it is larger than the sum of its proper divisors (22350).
499477801 is an frugal number, since it uses more digits than its factorization.
499477801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 44698 (or 22349 counting only the distinct ones).
The product of its (nonzero) digits is 508032, while the sum is 49.
The cubic root of 499477801 is about 793.4241166540.
The spelling of 499477801 in words is "four hundred ninety-nine million, four hundred seventy-seven thousand, eight hundred one".