74264887 has 2 divisors, whose sum is σ = 74264888. Its totient is φ = 74264886.

The previous prime is 74264881. The next prime is 74264917. The reversal of 74264887 is 78846247.

It is a weak prime.

It is an emirp because it is prime and its reverse (78846247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74264887 - 2⁷ = 74264759 is a prime.

It is a super-2 number, since 2×74264887² = 11030546882245538, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74264881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37132443 + 37132444.

It is an arithmetic number, because the mean of its divisors is an integer number (37132444).

Almost surely, 2^74264887 is an apocalyptic number.

74264887 is a deficient number, since it is larger than the sum of its proper divisors (1).

74264887 is an equidigital number, since it uses as much as digits as its factorization.

74264887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 46.

The square root of 74264887 is about 8617.7077578669. The cubic root of 74264887 is about 420.3339879296. Note that the first 3 decimals are identical.

The spelling of 74264887 in words is "seventy-four million, two hundred sixty-four thousand, eight hundred eighty-seven".