73513397 has 2 divisors, whose sum is σ = 73513398. Its totient is φ = 73513396.

The previous prime is 73513381. The next prime is 73513411. The reversal of 73513397 is 79331537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42588676 + 30924721 = 6526^2 + 5561^2 .

It is a cyclic number.

It is not a de Polignac number, because 73513397 - 2⁴ = 73513381 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73513397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73515397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36756698 + 36756699.

It is an arithmetic number, because the mean of its divisors is an integer number (36756699).

Almost surely, 2^73513397 is an apocalyptic number.

It is an amenable number.

73513397 is a deficient number, since it is larger than the sum of its proper divisors (1).

73513397 is an equidigital number, since it uses as much as digits as its factorization.

73513397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59535, while the sum is 38.

The square root of 73513397 is about 8573.9953930475. The cubic root of 73513397 is about 418.9113852735.

The spelling of 73513397 in words is "seventy-three million, five hundred thirteen thousand, three hundred ninety-seven".