499785001 has 4 divisors (see below), whose sum is σ = 511407952. Its totient is φ = 488162052.

The previous prime is 499784969. The next prime is 499785019. The reversal of 499785001 is 100587994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 499785001 - 2⁵ = 499784969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 11622907 = 499785001 / (4 + 9 + 9 + 7 + 8 + 5 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499785061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5811411 + ... + 5811496.

It is an arithmetic number, because the mean of its divisors is an integer number (127851988).

Almost surely, 2^499785001 is an apocalyptic number.

It is an amenable number.

499785001 is a deficient number, since it is larger than the sum of its proper divisors (11622951).

499785001 is a wasteful number, since it uses less digits than its factorization.

499785001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11622950.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 499785001 is about 22355.8717342894. The cubic root of 499785001 is about 793.5867464613.

It can be divided in two parts, 4997 and 85001, that added together give a palindrome (89998).

The spelling of 499785001 in words is "four hundred ninety-nine million, seven hundred eighty-five thousand, one".