782997 has 4 divisors (see below), whose sum is σ = 1044000. Its totient is φ = 521996.

The previous prime is 782993. The next prime is 783007. The reversal of 782997 is 799287.

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 782997 - 2² = 782993 is a prime.

It is a super-2 number, since 2×782997² = 1226168604018, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782993) 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, 130497 + ... + 130502.

It is an arithmetic number, because the mean of its divisors is an integer number (261000).

2⁷⁸²⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

782997 is a deficient number, since it is larger than the sum of its proper divisors (261003).

782997 is a wasteful number, since it uses less digits than its factorization.

782997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261002.

The product of its digits is 63504, while the sum is 42.

The square root of 782997 is about 884.8711770648. The cubic root of 782997 is about 92.1693870571.

Subtracting 782997 from its reverse (799287), we obtain a triangular number (16290 = T₁₈₀).

The spelling of 782997 in words is "seven hundred eighty-two thousand, nine hundred ninety-seven".