73389397 has 2 divisors, whose sum is σ = 73389398. Its totient is φ = 73389396.

The previous prime is 73389383. The next prime is 73389403. The reversal of 73389397 is 79398337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71216721 + 2172676 = 8439^2 + 1474^2 .

It is a cyclic number.

It is not a de Polignac number, because 73389397 - 2⁷ = 73389269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73389397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73389317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36694698 + 36694699.

It is an arithmetic number, because the mean of its divisors is an integer number (36694699).

Almost surely, 2^73389397 is an apocalyptic number.

It is an amenable number.

73389397 is a deficient number, since it is larger than the sum of its proper divisors (1).

73389397 is an equidigital number, since it uses as much as digits as its factorization.

73389397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 49.

The square root of 73389397 is about 8566.7611732790. The cubic root of 73389397 is about 418.6757173650.

The spelling of 73389397 in words is "seventy-three million, three hundred eighty-nine thousand, three hundred ninety-seven".