1973873623 has 2 divisors, whose sum is σ = 1973873624. Its totient is φ = 1973873622.

The previous prime is 1973873609. The next prime is 1973873663. The reversal of 1973873623 is 3263783791.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1973873623 is a prime.

It is a super-2 number, since 2×1973873623² = 7792354159150292258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1973873663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986936811 + 986936812.

It is an arithmetic number, because the mean of its divisors is an integer number (986936812).

Almost surely, 2^1973873623 is an apocalyptic number.

1973873623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973873623 is an equidigital number, since it uses as much as digits as its factorization.

1973873623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The square root of 1973873623 is about 44428.2975478467. The cubic root of 1973873623 is about 1254.4107905415.

The spelling of 1973873623 in words is "one billion, nine hundred seventy-three million, eight hundred seventy-three thousand, six hundred twenty-three".