1720964494 has 8 divisors (see below), whose sum is σ = 2608059888. Its totient is φ = 851611200.

The previous prime is 1720964477. The next prime is 1720964503. The reversal of 1720964494 is 4944690271.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4435282 + ... + 4435669.

It is an arithmetic number, because the mean of its divisors is an integer number (326007486).

Almost surely, 2^1720964494 is an apocalyptic number.

1720964494 is a deficient number, since it is larger than the sum of its proper divisors (887095394).

1720964494 is an equidigital number, since it uses as much as digits as its factorization.

1720964494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8871050.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1720964494 is about 41484.5090847174. The cubic root of 1720964494 is about 1198.3691953824.

The spelling of 1720964494 in words is "one billion, seven hundred twenty million, nine hundred sixty-four thousand, four hundred ninety-four".