74649307 has 2 divisors, whose sum is σ = 74649308. Its totient is φ = 74649306.

The previous prime is 74649293. The next prime is 74649317. The reversal of 74649307 is 70394647.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74649307 - 2¹⁵ = 74616539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74649307.

It is not a weakly prime, because it can be changed into another prime (74649317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37324653 + 37324654.

It is an arithmetic number, because the mean of its divisors is an integer number (37324654).

Almost surely, 2^74649307 is an apocalyptic number.

74649307 is a deficient number, since it is larger than the sum of its proper divisors (1).

74649307 is an equidigital number, since it uses as much as digits as its factorization.

74649307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 74649307 is about 8639.9830439648. The cubic root of 74649307 is about 421.0580034164.

The spelling of 74649307 in words is "seventy-four million, six hundred forty-nine thousand, three hundred seven".