996980626 has 4 divisors (see below), whose sum is σ = 1495470942. Its totient is φ = 498490312.

The previous prime is 996980603. The next prime is 996980629. The reversal of 996980626 is 626089699.

It is a Cunningham number, because it is equal to 31575²+1.

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

It can be written as a sum of positive squares in only one way, i.e., 996980625 + 1 = 31575^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (996980629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249245155 + ... + 249245158.

Almost surely, 2^996980626 is an apocalyptic number.

996980626 is a deficient number, since it is larger than the sum of its proper divisors (498490316).

996980626 is a wasteful number, since it uses less digits than its factorization.

996980626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498490315.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The square root of 996980626 is about 31575.0000158353. Note that the first 4 decimals coincide. The cubic root of 996980626 is about 998.9925273397.

The spelling of 996980626 in words is "nine hundred ninety-six million, nine hundred eighty thousand, six hundred twenty-six".