74252687 has 2 divisors, whose sum is σ = 74252688. Its totient is φ = 74252686.

The previous prime is 74252669. The next prime is 74252693. The reversal of 74252687 is 78625247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74252687 - 2⁶ = 74252623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74242687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37126343 + 37126344.

It is an arithmetic number, because the mean of its divisors is an integer number (37126344).

Almost surely, 2^74252687 is an apocalyptic number.

74252687 is a deficient number, since it is larger than the sum of its proper divisors (1).

74252687 is an equidigital number, since it uses as much as digits as its factorization.

74252687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 41.

The square root of 74252687 is about 8616.9998839503. Note that the first 3 decimals coincide. The cubic root of 74252687 is about 420.3109696245.

The spelling of 74252687 in words is "seventy-four million, two hundred fifty-two thousand, six hundred eighty-seven".