73745407 has 2 divisors, whose sum is σ = 73745408. Its totient is φ = 73745406.

The previous prime is 73745389. The next prime is 73745411. The reversal of 73745407 is 70454737.

It is a strong prime.

It is an emirp because it is prime and its reverse (70454737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73745407 - 2¹⁹ = 73221119 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 (73745437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36872703 + 36872704.

It is an arithmetic number, because the mean of its divisors is an integer number (36872704).

Almost surely, 2^73745407 is an apocalyptic number.

73745407 is a deficient number, since it is larger than the sum of its proper divisors (1).

73745407 is an equidigital number, since it uses as much as digits as its factorization.

73745407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 73745407 is about 8587.5145996965. The cubic root of 73745407 is about 419.3516205096.

The spelling of 73745407 in words is "seventy-three million, seven hundred forty-five thousand, four hundred seven".