1996951 has 8 divisors (see below), whose sum is σ = 2188800. Its totient is φ = 1806840.

The previous prime is 1996949. The next prime is 1996979. The reversal of 1996951 is 1596991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1996951 - 2¹ = 1996949 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 (1996901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3930 + ... + 4408.

It is an arithmetic number, because the mean of its divisors is an integer number (273600).

2^1996951 is an apocalyptic number.

1996951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1996951 is a deficient number, since it is larger than the sum of its proper divisors (191849).

1996951 is a wasteful number, since it uses less digits than its factorization.

1996951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869.

The product of its digits is 21870, while the sum is 40.

The square root of 1996951 is about 1413.1351669249. The cubic root of 1996951 is about 125.9280474385.

Adding to 1996951 its sum of digits (40), we get a palindrome (1996991).

The spelling of 1996951 in words is "one million, nine hundred ninety-six thousand, nine hundred fifty-one".