784056001 has 3 divisors (see below), whose sum is σ = 784084003. Its totient is φ = 784028000.

The previous prime is 784055969. The next prime is 784056019. The reversal of 784056001 is 100650487.

The square root of 784056001 is 28001.

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.

It can be written as a sum of positive squares in only one way, i.e., 538193601 + 245862400 = 23199^2 + 15680^2 .

It is not a de Polignac number, because 784056001 - 2⁵ = 784055969 is a prime.

It is a super-2 number, since 2×784056001² = 1229487625408224002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (784051001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14001 + ... + 42001.

Almost surely, 2^784056001 is an apocalyptic number.

784056001 is the 28001-st square number.

784056001 is the 14001-st centered octagonal number.

It is an amenable number.

784056001 is a deficient number, since it is larger than the sum of its proper divisors (28002).

784056001 is an frugal number, since it uses more digits than its factorization.

784056001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56002 (or 28001 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The cubic root of 784056001 is about 922.1092127395.

The spelling of 784056001 in words is "seven hundred eighty-four million, fifty-six thousand, one".