74649607 has 2 divisors, whose sum is σ = 74649608. Its totient is φ = 74649606.

The previous prime is 74649593. The next prime is 74649629. The reversal of 74649607 is 70694647.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74649607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74649647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37324803 + 37324804.

It is an arithmetic number, because the mean of its divisors is an integer number (37324804).

Almost surely, 2^74649607 is an apocalyptic number.

74649607 is a deficient number, since it is larger than the sum of its proper divisors (1).

74649607 is an equidigital number, since it uses as much as digits as its factorization.

74649607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 74649607 is about 8640.0004050926. Note that the first 3 decimals coincide. The cubic root of 74649607 is about 421.0585674637.

It can be divided in two parts, 7464 and 9607, that added together give a palindrome (17071).

The spelling of 74649607 in words is "seventy-four million, six hundred forty-nine thousand, six hundred seven".