996749 has 4 divisors (see below), whose sum is σ = 1073436. Its totient is φ = 920064.

The previous prime is 996739. The next prime is 996763. The reversal of 996749 is 947699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94249 + 902500 = 307^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 996749 - 2¹⁶ = 931213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996739) 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, 38324 + ... + 38349.

It is an arithmetic number, because the mean of its divisors is an integer number (268359).

2⁹⁹⁶⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

996749 is a deficient number, since it is larger than the sum of its proper divisors (76687).

996749 is a wasteful number, since it uses less digits than its factorization.

996749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76686.

The product of its digits is 122472, while the sum is 44.

The square root of 996749 is about 998.3731767230. The cubic root of 996749 is about 99.8915156874.

The spelling of 996749 in words is "nine hundred ninety-six thousand, seven hundred forty-nine".