73273819 has 2 divisors, whose sum is σ = 73273820. Its totient is φ = 73273818.

The previous prime is 73273771. The next prime is 73273831. The reversal of 73273819 is 91837237.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73273819 - 2⁹ = 73273307 is a prime.

It is a super-2 number, since 2×73273819² = 10738105101689522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73273919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36636909 + 36636910.

It is an arithmetic number, because the mean of its divisors is an integer number (36636910).

Almost surely, 2^73273819 is an apocalyptic number.

73273819 is a deficient number, since it is larger than the sum of its proper divisors (1).

73273819 is an equidigital number, since it uses as much as digits as its factorization.

73273819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 73273819 is about 8560.0127920465. The cubic root of 73273819 is about 418.4558167226.

The spelling of 73273819 in words is "seventy-three million, two hundred seventy-three thousand, eight hundred nineteen".