73449863 has 2 divisors, whose sum is σ = 73449864. Its totient is φ = 73449862.

The previous prime is 73449853. The next prime is 73449869. The reversal of 73449863 is 36894437.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73449863 - 2²² = 69255559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73449869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36724931 + 36724932.

It is an arithmetic number, because the mean of its divisors is an integer number (36724932).

Almost surely, 2^73449863 is an apocalyptic number.

73449863 is a deficient number, since it is larger than the sum of its proper divisors (1).

73449863 is an equidigital number, since it uses as much as digits as its factorization.

73449863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 44.

The square root of 73449863 is about 8570.2895517013. The cubic root of 73449863 is about 418.7906690136.

The spelling of 73449863 in words is "seventy-three million, four hundred forty-nine thousand, eight hundred sixty-three".