1652721803 has 8 divisors (see below), whose sum is σ = 1714795680. Its totient is φ = 1590986880.

The previous prime is 1652721797. The next prime is 1652721823. The reversal of 1652721803 is 3081272561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1652721803 - 2¹² = 1652717707 is a prime.

It is a super-2 number, since 2×1652721803² = 5462978716223141618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1652721823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74783 + ... + 94328.

It is an arithmetic number, because the mean of its divisors is an integer number (214349460).

Almost surely, 2^1652721803 is an apocalyptic number.

1652721803 is a deficient number, since it is larger than the sum of its proper divisors (62073877).

1652721803 is a wasteful number, since it uses less digits than its factorization.

1652721803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169477.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1652721803 is about 40653.6812970240. The cubic root of 1652721803 is about 1182.3151432983.

The spelling of 1652721803 in words is "one billion, six hundred fifty-two million, seven hundred twenty-one thousand, eight hundred three".