772997 has 4 divisors (see below), whose sum is σ = 783660. Its totient is φ = 762336.

The previous prime is 772991. The next prime is 773021. The reversal of 772997 is 799277.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 799277 = 73 ⋅10949.

It can be written as a sum of positive squares in 2 ways, for example, as 256036 + 516961 = 506^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 772997 - 2¹⁰ = 771973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772991) 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 3 ways as a sum of consecutive naturals, for example, 5222 + ... + 5367.

It is an arithmetic number, because the mean of its divisors is an integer number (195915).

2⁷⁷²⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

772997 is a deficient number, since it is larger than the sum of its proper divisors (10663).

772997 is a wasteful number, since it uses less digits than its factorization.

772997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10662.

The product of its digits is 55566, while the sum is 41.

The square root of 772997 is about 879.2024795233. The cubic root of 772997 is about 91.7753260597.

The spelling of 772997 in words is "seven hundred seventy-two thousand, nine hundred ninety-seven".