1973669 has 2 divisors, whose sum is σ = 1973670. Its totient is φ = 1973668.

The previous prime is 1973651. The next prime is 1973687. The reversal of 1973669 is 9663791.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1973651) and next prime (1973687).

It can be written as a sum of positive squares in only one way, i.e., 1181569 + 792100 = 1087^2 + 890^2 .

It is an emirp because it is prime and its reverse (9663791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1973669 - 2¹² = 1969573 is a prime.

It is a super-2 number, since 2×1973669² = 7790738643122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1973689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986834 + 986835.

It is an arithmetic number, because the mean of its divisors is an integer number (986835).

2^1973669 is an apocalyptic number.

It is an amenable number.

1973669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973669 is an equidigital number, since it uses as much as digits as its factorization.

1973669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 41.

The square root of 1973669 is about 1404.8733038961. The cubic root of 1973669 is about 125.4367442584.

The spelling of 1973669 in words is "one million, nine hundred seventy-three thousand, six hundred sixty-nine".