73049861 has 2 divisors, whose sum is σ = 73049862. Its totient is φ = 73049860.

The previous prime is 73049843. The next prime is 73049887. The reversal of 73049861 is 16894037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68989636 + 4060225 = 8306^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 73049861 - 2¹⁸ = 72787717 is a prime.

It is equal to p_4286846 and since 73049861 and 4286846 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73049831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36524930 + 36524931.

It is an arithmetic number, because the mean of its divisors is an integer number (36524931).

Almost surely, 2^73049861 is an apocalyptic number.

It is an amenable number.

73049861 is a deficient number, since it is larger than the sum of its proper divisors (1).

73049861 is an equidigital number, since it uses as much as digits as its factorization.

73049861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 73049861 is about 8546.9211415574. The cubic root of 73049861 is about 418.0290514213.

The spelling of 73049861 in words is "seventy-three million, forty-nine thousand, eight hundred sixty-one".