782490973 has 4 divisors (see below), whose sum is σ = 853626528. Its totient is φ = 711355420.

The previous prime is 782490959. The next prime is 782490979. The reversal of 782490973 is 379094287.

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 782490973 - 2⁵ = 782490941 is a prime.

It is a super-2 number, since 2×782490973² = 1224584245652973458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782490979) 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 3 ways as a sum of consecutive naturals, for example, 35567761 + ... + 35567782.

It is an arithmetic number, because the mean of its divisors is an integer number (213406632).

Almost surely, 2^782490973 is an apocalyptic number.

It is an amenable number.

782490973 is a deficient number, since it is larger than the sum of its proper divisors (71135555).

782490973 is a wasteful number, since it uses less digits than its factorization.

782490973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71135554.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 782490973 is about 27973.0401100774. The cubic root of 782490973 is about 921.4952736018.

The spelling of 782490973 in words is "seven hundred eighty-two million, four hundred ninety thousand, nine hundred seventy-three".